Whenever a Bird is put into your graveyard from the battlefield, put a feather counter on Soulcatchers' Aerie.Bird creatures get +1/+1 for each feather counter on Soulcatchers' Aerie.
VigilanceWhen Highcliff Felidar enters, for each opponent, choose a creature with the greatest power among creatures that player controls. Destroy those creatures.
Equipped creature has deathtouch and lifelink. (Any amount of damage it deals to a creature is enough to destroy it. Damage dealt by this creature also causes you to gain that much life.)Equip (: Attach to target creature you control. Equip only as a sorcery.)
, Sacrifice Nihil Spellbomb: Exile target player's graveyard.When Nihil Spellbomb is put into a graveyard from the battlefield, you may pay . If you do, draw a card.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)Create a 1/1 green Saproling creature token.
Defender, flyingCumulative upkeep—An opponent gains 1 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)