Ancient Sea Death Emperor

Haste, reach, intimidate, deathtouch
On your opponents turn, untap all permanents
you control, they gain hexproof and indestructible until end of turn,
Pay 10 life, draw 12, discard 6, you may cast
those cards without paying their mana value.
If this creature is in the command zone, you gain
5 life, and your opponents lose 5 life.
"I rule the seas now, Thassa...you're in my
domain, NOW BOW BEFORE ME!