Ragnarok the Unyielding

Reach, trample, indestructible

Creature spells you cast have cascade, cascade, cascade,
cascade.

Whenever a creature enters the battlefield under your
control, scry 2. the draw a card. Whenever a creature
enters the battlefield under an opponents control,
Ragnarok the Unyielding deals five damage to that
opponent.
Flashback {5}{w}{r}{r}{g} — Draw three cards. (You may cast this card for its flashback cost. Then exile it.)
-CAN ONLY USED AS COMMANDER.