Umori, the Collector | 231 | Ikoria: Lair of Behemoths

Set: Ikoria: Lair of Behemoths
Rarity: R
#: 231
Creature Type or Sub Type: Legendary Creature — Ooze
P: 4
T: 5
Rules Text Contains: Companion - Each nonland card in your starting deck shares a card type. (If this card is your chosen companion, you may cast it once from outside the game)
As Umori, the Collector enters the battlefield, choose a card type.
Spells you cast of the chosen type cost one less to cast.