Dreamscape Hydra

When you cast this spell, it perpetually gains
distortion X. (For the rest of the game, this card has
mana value X in all zones.)
Dreamscape Hydra's power and toughness are
each equal to its mana value.
{2}{u}{b}, {t}, Sacrifice Dreamscape Hydra: You
draw cards and lose life equal to the greatest
mana value among permanents you control and
Dreamscape Hydra.
Artwork source:
https://www.artstation.com/artwork/lxoqYo