Elden Beast

Indestructible
When Elden Beast enters the battlefield, sacrifice
a creature. Put X +1/+1 counters on Elden Beast,
where X is that creature's power.
Elden Stars - At the beginning of each upkeep,
create a 1/3 white Orb creature token with Flying.
Wave of Gold - {6},{t}: Destroy all non-creature enchantments and artifacts.
Elden Ring - {6},{t}: For each other permanent,
roll a d20. If the result is less than 15, destroy that permanent.