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.
Exile target card that's an instant or sorcery from your graveyard. For each card exiled this way, copy it, and you may cast the copy without paying its mana cost. Exile Mizzix's Mastery.Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
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.
