Senna, Undaunted Racer

{t}: Target Vehicle with crew 3 or lower becomes an artifact creature with haste, trample and prowess until end of turn. Senna crews it.

Whenever a Vehicle crewed by Senna deals combat damage to a player, create a Treasure token for each instant and sorcery spell you casted or copied this
turn.

Being second is to be the first among those who lose.