Six [Modern Horizons 3 Prerelease Promos] Karsus Whenever an artifact or creature

Whenever an artifact or creature enters the battlefield untapped and under an opponent's control

each with a unique set of powers:

Discard a card: Untap target creature and gain control of it until end of turn

When the alarm crystals flash

their dispositions and behaviors

Six [Modern Horizons 3 Prerelease Promos] Karsus Whenever an artifact or creatureSet: Modern Horizons 3 Prerelease Promos Type: Legendary Creature Treefolk Rarity: Rare Cost: {2}{G} Reach Whenever Six attacks, mill three cards. You may put a land card from among them into your hand. As long as it's your turn, nonland permanent cards in your graveyard have retrace. (You may cast permanent cards from your graveyard by discarding a land card in addition to paying their other costs.)