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From $10.25
'First strike, trample, haste Whenever this creature attacks, it gets +X/+0 until end of turn, where X is the number of creatures you control. When this creature enters, if it's...
$0.25
'As an additional cost to cast this spell, reveal a creature card from your hand. Target creature gets -X/-X until end of turn, where X is the revealed card's mana...
From $1.00
'You get X {E} (energy counters), then you may pay any amount of {E}. Destroy each artifact, creature, and enchantment with mana value less than or equal to the amount...
From $1.00
'At the beginning of your upkeep, put a time counter on this enchantment. Once each turn, you may pay {0} rather than pay the mana cost for a spell you...
From $0.25
Destroy all creatures with toughness X or less. You lose X life. If X is 6 or more, return a creature card put into a graveyard this way to the...
From $2.75
'As an additional cost to cast this spell, pay X life.
Fire Covenant deals X damage divided as you choose among any number of target creatures.
$0.25
'You may cast this spell as though it had flash if X is 3 or less.
Draw X cards.
From $0.25
'Flying {2}: This creature gets +1/+0 until end of turn. {X}: Destroy each nonland permanent with mana value X whose controller was dealt combat damage by this creature this turn....
From $0.25
'Kicker {R} (You may pay an additional {R} as you cast this spell.) If this spell was kicked, it has split second. (As long as this spell is on the...
From $31.00
'As an additional cost to cast this spell, discard X cards.
Firestorm deals X damage to each of X targets.
From $8.75
'If target creature has toughness 5 or greater, it gets +4/-4 until end of turn. Otherwise, it gets +4/-X until end of turn, where X is its toughness minus 1.
From $27.50
Whenever you cast a noncreature spell, put a +1/+1 counter on Estinien Varlineau. It gains flying until end of turn. At the beginning of your second main phase, you draw...