Omnath, Locus of Mana (Borderless Textured Foil Frame Break) [Commander Masters] Necron Warrior you may return Krovikan Horror

you may return Krovikan Horror to your hand

Whenever Wrexial

Set: Mirrodin Type: Creature — Human Wizard Rarity: Rare Cost: {1}{U}{U} At the beginning of each opponent's upkeep

Set: Secret Lair Drop Series Type: Artifact Creature — Vedalken Artificer Rarity: Rare Cost: {1}{U} Artifact spells you cast cost {1} less to cast

Omnath, Locus of Mana (Borderless Textured Foil Frame Break) [Commander Masters] Necron Warrior you may return Krovikan HorrorSet: Commander Masters Type: Legendary Creature Elemental Rarity: Mythic Cost: {2}{G} You don't lose unspent green mana as steps and phases end. Omnath, Locus of Mana gets +1 +1 for each unspent green mana you have. As wild and untamed as the Roil from which it was born.