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From $3.25
'As an additional cost to cast this spell, sacrifice a creature. Search your library for a creature card with mana value X or less, where X is 2 plus the...
From $1.25
'Whenever you attack, choose odd or even. Creatures with mana value of that quality can't block this turn. (Zero is even.) Each other colorless creature you control has bloodthirst 2....
From $0.75
'Emerge {6}{R}{R} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When you cast this spell, you may exile...
From $0.75
'At the beginning of your upkeep, you may create a 0/1 colorless Eldrazi Spawn creature token. It has "Sacrifice this token: Add {C}."
$0.25
'When this creature enters, create a 3/2 colorless Eldrazi Horror creature token.
From $4.75
'When you cast this spell, you may return target creature card from your graveyard to the battlefield. Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents of their...
From $7.50
'Flash As this artifact enters, choose a card name. Spells with the chosen name cost {3} more to cast. Activated abilities of sources with the chosen name can't be activated...
From $1.00
'When you cast this spell, draw two cards. Flying Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent of their choice.) Evoke {2}{U} (You may cast this spell...
From $3.25
'Goad all creatures you don't control. (Until your next turn, those creatures attack each combat if able and attack a player other than you if able.)
From $41.25
'Colorless Eldrazi spells you cast cost {2} less to cast.
{7}, {T}: Search your library for a colorless creature card, reveal it, put it into your hand, then shuffle.
From $0.25
'Flash Emerge {5}{U}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When you cast this spell, tap up...
From $29.75
'When you cast this spell, if you have fewer than seven cards in hand, draw cards equal to the difference. Menace Discard a card with mana value X: Counter target...