Ugin, the Spirit Dragon (Promo Pack) [Core Set 2021 Promos] Human Wizard Pilot Sigil of Corruption — When

Sigil of Corruption — When you lose control of Khârn the Betrayer

then discard X cards

"The gods used their feathers to paint all the colors of the world

This one just gets you

except the copy isn't legendary

Ugin, the Spirit Dragon (Promo Pack) [Core Set 2021 Promos] Human Wizard Pilot Sigil of Corruption — WhenSet: Core Set 2021 Promos Type: Legendary Planeswalker Ugin Rarity: Mythic Cost: {8} +2: Ugin, the Spirit Dragon deals 3 damage to any target. X: Exile each permanent with mana value X or less that's one or more colors. 10: You gain 7 life, draw seven cards, then put up to seven permanent cards from your hand onto the battlefield.