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'First strike, vigilance
Menace, trample
Reach, lifelink
Ward—Pay 7 life.
'When Kiora enters, draw two cards, then discard two cards. Threshold — Whenever Kiora attacks, if there are seven or more cards in your graveyard, you may create Scion of...
'Target player activates a mana ability of each land they control. Then that player loses all unspent mana and you add the mana lost this way.
'Whenever a player taps a land for mana, this enchantment deals 1 damage to that player.
'Counter target spell unless its controller pays {1}.
'Counter target spell unless its controller pays {1}.
'Counter target spell unless its controller pays {1}.
'Flash (You may cast this spell any time you could cast an instant.)
Flying
You can't lose the game and your opponents can't win the game.
'{2}, {T}: Put a charge counter on this artifact. {T}, Remove any number of charge counters from this artifact: Add {G}, then add an additional {G} for each charge counter...
'{3}, {T}: Double the amount of each type of unspent mana you have.
'This spell can't be countered.
Trample, ward {4}
Whenever Koma deals combat damage to a player, create four 3/3 blue Serpent creature tokens named Koma's Coil.
'Creatures you control get +1/+1.