When Elite Scaleguard enters, bolster 2. (Choose a creature with the least toughness among creatures you control and put two +1/+1 counters on it.)Whenever a creature you control with a +1/+1 counter on it attacks, tap target creature defending player controls.
Custodi Soulbinders enters with X +1/+1 counters on it, where X is the number of other creatures on the battlefield., Remove a +1/+1 counter from Custodi Soulbinders: Create a 1/1 white Spirit creature token with flying.
When Mycosynth Wellspring enters or is put into a graveyard from the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Whenever you draw a card, you may put a hoofprint counter on Hoofprints of the Stag., Remove four hoofprint counters from Hoofprints of the Stag: Create a 4/4 white Elemental creature token with flying. Activate only during your turn.
Academy Elite enters with X +1/+1 counters on it, where X is the number of instant and sorcery cards in all graveyards., Remove a +1/+1 counter from Academy Elite: Draw a card, then discard a card.
FlyingWhenever Thrummingbird deals combat damage to a player, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)