FlyingWither (This deals damage to creatures in the form of -1/-1 counters.)Creatures your opponents control with counters on them can't attack or block.
When Furystoke Giant enters, other creatures you control gain ": This creature deals 2 damage to any target" until end of turn.Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)
Return all permanents to their owners' hands. Each player chooses up to seven cards in their hand, then shuffles the rest into their library. Each player loses all unspent mana.
If Mossbridge Troll would be destroyed, regenerate it.Tap any number of untapped creatures you control other than Mossbridge Troll with total power 10 or greater: Mossbridge Troll gets +20/+20 until end of turn.
At the beginning of your upkeep, remove a -1/-1 counter from each creature you control.Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)
Wingrattle Scarecrow has flying as long as you control a blue creature.Wingrattle Scarecrow has persist as long as you control a black creature. (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)
