MTG Aetherdrift Chandra, Spark Hunter (Showcase)

At the beginning of combat on your turn, choose up to one target Vehicle you control. Until end of turn, it becomes an artifact creature and gains haste. +2: You may sacrifice an artifact or discard a card. If you do, draw a card. 0: Create a 3/2 colorless Vehicle artifact token with crew 1. −7: You get an emblem with "Whenever an artifact you control enters, this emblem deals 3 damage to any target."