Tidehollow Sculler [Shards of Alara] Human Frog Horror The mana is the blood

The mana is the blood

and cannot lose by drawing from an empty library

Set: Stronghold Type: Sorcery Rarity: Uncommon Cost: {1}{G} Distribute two +1/+1 counters among one or two target creatures

Its controller investigates

Set: Kaldheim Commander Type: Artifact Rarity: Rare Cost: {2}{B} Whenever an Elf you control dies

Tidehollow Sculler [Shards of Alara] Human Frog Horror The mana is the bloodSet: Shards of Alara Type: Artifact Creature Zombie Rarity: Uncommon Cost: {W}{B} When Tidehollow Sculler enters the battlefield, target opponent reveals their hand and you choose a nonland card from it. Exile that card. When Tidehollow Sculler leaves the battlefield, return the exiled card to its owner's hand.