Thalia's Geistcaller [Commander 2019] Astartes Warrior I'm to entrust this powerful

I'm to entrust this powerful artifact to our worst researchers

Sacrifice Endless Sands: Return each creature card exiled with Endless Sands to the battlefield under its owner's control

Abomination of Llanowar's power and toughness are each equal to the number of Elves you control plus the number of Elf cards in your graveyard

you may exile any number of tokens created with Tetravus

Set: Weatherlight Type: Instant Rarity: Common Cost: {4}{B}{B} You may exile the top three black cards of your graveyard rather than pay this spell's mana cost

Thalia's Geistcaller [Commander 2019] Astartes Warrior I'm to entrust this powerfulSet: Commander 2019 Type: Creature Human Cleric Rarity: Rare Cost: {2}{W} Lifelink Whenever you cast a spell from your graveyard, create a 1 1 white Spirit creature token with flying. Sacrifice a Spirit: Thalia's Geistcaller gains indestructible until end of turn.