Cursed Hydra

Cursed Hydra enters the battlefield with X +1 +1 counter on it.
Whenever Cursed Hydra attacks and that triggers
a triggered ability from a curse enchantment,
it triggers X times instead.
At the beginning of each players upkeep,
that player gains control of Cursed Hydra.
Untap it, it gains haste and is goaded
until end of turn.