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'Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
'Menace Whenever one or more creatures you control deal combat damage to a player, create a Treasure token. Sacrifice a Treasure: Exile the top card of your library. You may...
'Whenever you cast a Treefolk spell, you may have target creature get +3/-3 until end of turn.
'Other Elf creatures get +1/+1 and have forestwalk. (They can't be blocked as long as defending player controls a Forest.)
'{T}, Pay 1 life, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield, then shuffle.
'Whenever a player casts a spell, that player discards a card.
'Psionic Blast deals 4 damage to any target and 2 damage to you.
'({T}: Add {U}.)
'Search your library for a Forest card, put it onto the battlefield, then shuffle.
'Xantcha enters under the control of an opponent of your choice. Xantcha attacks each combat if able and can't attack its owner or planeswalkers its owner controls. {3}: Xantcha's controller...
'{T}: Gain control of target creature with power less than or equal to the number of creatures you control.