cache exists in db
Equivalent options (same colors: blue):
1. “Gyruda, Doom of Depths” — Reanimates a nonland creature from graveyards.
2. “Archaeomancer” — Returns an instant or sorcery from your graveyard to hand.
3. “Diluvian Primordial” — Casts an instant or sorcery from opponents’ graveyards for free.
4. “Torrential Gearhulk” — Casts an instant from your graveyard for free.
Reason: All are blue creatures that interact with graveyards or spells similarly to “Scholar of the Lost Trove.”