Whenever another creature you control dies, you get an experience counter.At the beginning of your end step, choose target creature card in your graveyard. If that card's mana value is less than or equal to the number of experience counters you have, return it to the battlefield. Otherwise, put it into your hand.
Devour 2 (As this enters, you may sacrifice any number of creatures. This creature enters with twice that many +1/+1 counters on it.)At the beginning of your upkeep, create a 1/1 green Saproling creature token for each +1/+1 counter on Mycoloth.
Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)Whenever Ninja of the Deep Hours deals combat damage to a player, you may draw a card.
Whenever a spell or ability an opponent controls destroys a noncreature permanent you control, you may destroy target permanent that opponent controls.
Untap all creatures you control and all creatures target opponent controls. You and that opponent each gain control of all creatures the other controls until end of turn. Those creatures gain haste until end of turn.
Flying, first strikeIf a source would deal damage to an opponent or a permanent an opponent controls, that source deals double that damage to that player or permanent instead.If a source would deal damage to you or a permanent you control, prevent half that damage, rounded up.
Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control. It can attack and no matter when it came under your control.)Equip (: Attach to target creature you control. Equip only as a sorcery.)
Whenever a creature you control with power 2 or less enters, you get an experience counter.At the beginning of combat on your turn, put X +1/+1 counters on another target creature you control, where X is the number of experience counters you have.
Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.
Whenever Ohran Viper deals combat damage to a creature, destroy that creature at end of combat.Whenever Ohran Viper deals combat damage to a player, you may draw a card.
For each creature your opponents control, create a 4/4 green Phyrexian Beast creature token. Each of those tokens fights a different one of those creatures.