UB Stiflenought by Alessandro Ferraris

Main Deck

Phyrexian Dreadnought
Artifact Creature — Phyrexian Dreadnought
Trample
When Phyrexian Dreadnought enters the battlefield, sacrifice it unless you sacrifice any number of creatures with total power 12 or greater.
Foil
Instant
You may discard an Island card and another card rather than pay this spell's mana cost.
Counter target spell.
Gush
Instant
You may return two Islands you control to their owner's hand rather than pay this spell's mana cost.
Draw two cards.
Impulse
Instant
Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.
Stifle
Instant
Counter target activated or triggered ability. (Mana abilities can't be targeted.)
Phyrexian Dreadnought
Artifact Creature — Phyrexian Dreadnought
Trample
When Phyrexian Dreadnought enters the battlefield, sacrifice it unless you sacrifice any number of creatures with total power 12 or greater.
Foil
Instant
You may discard an Island card and another card rather than pay this spell's mana cost.
Counter target spell.
Gush
Instant
You may return two Islands you control to their owner's hand rather than pay this spell's mana cost.
Draw two cards.
Impulse
Instant
Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.
Stifle
Instant
Counter target activated or triggered ability. (Mana abilities can't be targeted.)
Phyrexian Dreadnought
Artifact Creature — Phyrexian Dreadnought
Trample
When Phyrexian Dreadnought enters the battlefield, sacrifice it unless you sacrifice any number of creatures with total power 12 or greater.
Foil
Instant
You may discard an Island card and another card rather than pay this spell's mana cost.
Counter target spell.
Gush
Instant
You may return two Islands you control to their owner's hand rather than pay this spell's mana cost.
Draw two cards.
Impulse
Instant
Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.
Stifle
Instant
Counter target activated or triggered ability. (Mana abilities can't be targeted.)
Phyrexian Dreadnought
Artifact Creature — Phyrexian Dreadnought
Trample
When Phyrexian Dreadnought enters the battlefield, sacrifice it unless you sacrifice any number of creatures with total power 12 or greater.
Foil
Instant
You may discard an Island card and another card rather than pay this spell's mana cost.
Counter target spell.
Gush
Instant
You may return two Islands you control to their owner's hand rather than pay this spell's mana cost.
Draw two cards.
Impulse
Instant
Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.
Stifle
Instant
Counter target activated or triggered ability. (Mana abilities can't be targeted.)
Vision Charm
Instant
Choose one —
• Target player mills four cards.
• Choose a land type and a basic land type. Each land of the first chosen type becomes the second chosen type until end of turn.
• Target artifact phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before its controller untaps during their next untap step.)
Duress
Sorcery
Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.
Portent
Sorcery
Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.
Draw a card at the beginning of the next turn's upkeep.
Lim-Dûl's Vault
Instant
Look at the top five cards of your library. As many times as you choose, you may pay 1 life, put those cards on the bottom of your library in any order, then look at the top five cards of your library. Then shuffle and put the last cards you looked at this way on top in any order.
Counterspell
Instant
Counter target spell.
Vision Charm
Instant
Choose one —
• Target player mills four cards.
• Choose a land type and a basic land type. Each land of the first chosen type becomes the second chosen type until end of turn.
• Target artifact phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before its controller untaps during their next untap step.)
Duress
Sorcery
Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.
Portent
Sorcery
Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.
Draw a card at the beginning of the next turn's upkeep.
Lim-Dûl's Vault
Instant
Look at the top five cards of your library. As many times as you choose, you may pay 1 life, put those cards on the bottom of your library in any order, then look at the top five cards of your library. Then shuffle and put the last cards you looked at this way on top in any order.
Counterspell
Instant
Counter target spell.
Vision Charm
Instant
Choose one —
• Target player mills four cards.
• Choose a land type and a basic land type. Each land of the first chosen type becomes the second chosen type until end of turn.
• Target artifact phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before its controller untaps during their next untap step.)
Duress
Sorcery
Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.
Portent
Sorcery
Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.
Draw a card at the beginning of the next turn's upkeep.
Vendetta
Instant
Destroy target nonblack creature. It can't be regenerated. You lose life equal to that creature's toughness.
Counterspell
Instant
Counter target spell.
Vision Charm
Instant
Choose one —
• Target player mills four cards.
• Choose a land type and a basic land type. Each land of the first chosen type becomes the second chosen type until end of turn.
• Target artifact phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before its controller untaps during their next untap step.)
Duress
Sorcery
Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.
Portent
Sorcery
Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.
Draw a card at the beginning of the next turn's upkeep.
Vendetta
Instant
Destroy target nonblack creature. It can't be regenerated. You lose life equal to that creature's toughness.
Daze
Instant
You may return an Island you control to its owner's hand rather than pay this spell's mana cost.
Counter target spell unless its controller pays .
Daze
Instant
You may return an Island you control to its owner's hand rather than pay this spell's mana cost.
Counter target spell unless its controller pays .
Polluted Delta
Land
, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.
Underground River
Land
: Add .
: Add or . Underground River deals 1 damage to you.
Island
Basic Land — Island
(: Add .)
Island
Basic Land — Island
(: Add .)
Daze
Instant
You may return an Island you control to its owner's hand rather than pay this spell's mana cost.
Counter target spell unless its controller pays .
Polluted Delta
Land
, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.
Underground River
Land
: Add .
: Add or . Underground River deals 1 damage to you.
Island
Basic Land — Island
(: Add .)
Island
Basic Land — Island
(: Add .)
Polluted Delta
Land
, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.
Underground River
Land
: Add .
: Add or . Underground River deals 1 damage to you.
Swamp
Basic Land — Swamp
(: Add .)
Island
Basic Land — Island
(: Add .)
Island
Basic Land — Island
(: Add .)
Polluted Delta
Land
, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.
Underground River
Land
: Add .
: Add or . Underground River deals 1 damage to you.
Island
Basic Land — Island
(: Add .)
Island
Basic Land — Island
(: Add .)
Island
Basic Land — Island
(: Add .)

Side

Annul
Instant
Counter target artifact or enchantment spell.
Annul
Instant
Counter target artifact or enchantment spell.
Annul
Instant
Counter target artifact or enchantment spell.
Boomerang
Instant
Return target permanent to its owner's hand.
Blue Elemental Blast
Instant
Choose one —
• Counter target red spell.
• Destroy target red permanent.
Blue Elemental Blast
Instant
Choose one —
• Counter target red spell.
• Destroy target red permanent.
Cursed Totem
Artifact
Activated abilities of creatures can't be activated.
Cursed Totem
Artifact
Activated abilities of creatures can't be activated.
Engineered Plague
Enchantment
As Engineered Plague enters the battlefield, choose a creature type.
All creatures of the chosen type get -1/-1.
Engineered Plague
Enchantment
As Engineered Plague enters the battlefield, choose a creature type.
All creatures of the chosen type get -1/-1.
Hydroblast
Instant
Choose one —
• Counter target spell if it's red.
• Destroy target permanent if it's red.
Hydroblast
Instant
Choose one —
• Counter target spell if it's red.
• Destroy target permanent if it's red.
Smother
Instant
Destroy target creature with mana value 3 or less. It can't be regenerated.
Smother
Instant
Destroy target creature with mana value 3 or less. It can't be regenerated.
Vendetta
Instant
Destroy target nonblack creature. It can't be regenerated. You lose life equal to that creature's toughness.