Valchurak, the Mercenary

First strike
When Valchurak, the Mercenary enters the battlefield or a creature chosen this way dies, choose another creature. When a creature chosen this way dies, create a colourless Treasure artifact token with "{t}, Sacrifice this artifact: Add one mana of any colour to your mana pool."
Tap and sacrifice a Treasure token: Valchurak deals two damage to target creature.