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From $0.25
'Manifest the top card of your library, then put X +1/+1 counters on it. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn...
From $9.50
'Each other planeswalker you control has the loyalty abilities of Kasmina. [+2]: Scry 1. [−X]: Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it....
From $20.75
'This spell costs {X} less to cast, where X is the greatest number of artifacts an opponent controls. Flying, trample, haste Whenever this creature deals combat damage to a player,...
From $6.00
'{T}: Create X 1/1 red Goblin creature tokens, where X is the number of Goblins you control.
From $7.00
'Whenever you cast a creature spell with mana value 4 or greater, you draw a card, gain 1 life, and put a +1/+1 counter on Helga. {T}: Add X mana...
From $1.00
'Exile target creature. Put X +1/+1 counters on a commander creature you control, where X is the power of the creature exiled this way.
From $56.75
'This spell costs {X} less to cast, where X is the greatest power among creatures you control. {T}: Add {G}{G}. You gain 2 life. Whenever a nontoken creature you control...
From $8.50
'Choose two — • Target player creates X 0/1 colorless Eldrazi Spawn creature tokens with "Sacrifice this token: Add {C}." • Target player scries X, then draws a card. •...
From $4.50
'Shroud (This enchantment can't be the target of spells or abilities.) {X}: Put X tower counters on this enchantment. At the beginning of your upkeep, if there are 100 or...
From $1.25
'(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.)
Jaya's Immolating Inferno deals X damage to each of up to three targets.
From $1.50
'Until end of turn, creatures you control gain trample and get +X/+X, where X is the greatest power among creatures you control.
From $0.50
'Equipped creature has first strike and gets +X/+0, where X is the number of instant and sorcery cards in your graveyard.
Equip {2}