Nightshade Assassin [Time Spiral] Grass [-30] Set: Commander 2013 Oversized Type:

Set: Commander 2013 Oversized Type: Legendary Creature — Giant Soldier Rarity: Mythic Cost: {3}{W}{U}{B} At the beginning of your upkeep

−12: Creatures you control get +5/+5 and gain trample until end of turn

As if that's when it ends

Dominaria itself became a weapon

instead search that player's library for up to fifteen cards

Nightshade Assassin [Time Spiral] Grass [-30] Set: Commander 2013 Oversized Type:Set: Time Spiral Type: Creature Human Assassin Rarity: Uncommon Cost: {2}{B}{B} First strike When Nightshade Assassin enters the battlefield, you may reveal X black cards in your hand. If you do, target creature gets X X until end of turn. Madness {1}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)