Gargos, Vicious Watcher

Legendary Creature — Hydra - (rare)

Vigilance
Hydra spells you cast cost  less to cast.
Whenever a creature you control becomes the target of a spell, Gargos, Vicious Watcher fights up to one target creature you don't control.

Price

cardkingdom 0.99

cardmarket 0.95

cardsphere 0.7

tcgplayer 0.66