Estian, Wandering Wizard

Abjuration Ward - {u}{1} Target creature gains indestructible until end of turn

Chain Lighting - {t}{4} Estian, Wandering Wizard does 3 damage to target player or permanent, then if target was a creature, flip a coin. If you win the flip, choose a new target for this ability. Continue until you choose a non-creature or lose the coin flip.