When Greenwarden of Murasa enters, you may return target card from your graveyard to your hand. When Greenwarden of Murasa dies, you may exile it. If you do, return target card from your graveyard to your hand.
When Grenzo enters and at the beginning of your upkeep, heist target opponent's library. Once each turn, you may pay {0} rather than pay the mana cost for a spell you cast that you don't own with mana value 3 or less.
Menace When Grief enters, target opponent reveals their hand. You choose a nonland card from it. That player discards that card. Evoke—Exile a black card from your hand.
Whenever one or more creatures you control deal combat damage to a player, create two Treasure tokens. {B}, Sacrifice X Treasures: Target creature gets -X/-X until end of turn. Activate only as a sorcery.
Menace When Grim Servant enters, search your library for a card with mana value less than or equal to your devotion to black, reveal it, put it into your hand, then shuffle. You lose 3 life.
When Grizzled Huntmaster enters the battlefield, you may exile a creature card from your hand. If you do, search your hand and library for any number of cards with the same name, exile them, then shuffle. Choose a creature card you own from outside the game. Conjure a duplicate of that card into your hand for each card exiled from your hand this way.
Other creatures have "Whenever this creature attacks, you may have it fight Grothama, All-Devouring." When Grothama leaves the battlefield, each player draws cards equal to the amount of damage dealt to Grothama this turn by sources they controlled.
{G/U}: Groundling Pouncer gets +1/+3 and gains flying until end of turn. Activate only once each turn and only if an opponent controls a creature with flying.
Endry was determined to teach his groundlings a few winged-faerie tricks.