Halimar Depths, Now With Fish

Halimar Depths, Now With Fish enters the battlefield with 5 global warming counters on it,
whenever Halimar Depths, Now With Fish is tapped for mana, remove a global warming counter from it,
When the last global warming counter is removed from Halimar Depths, Now With Fish, sacrafice it and create a 20/20 FISH OF OLD creature token with hexproof, indestructable and, {t}: destroy target control player or player with infect in their deck"
{t}:{w}{u}