Blackest Lotus

Blackest Lotus can't be countered.
On every turn, choose one of the following that
hasn't been chosen.
•You gain {x} life
•Add thrice {x} mana of any color to your pool
•Transform Blackest Lotus into a 4/8 with double strike, vigilance, flying, trample, indestructible, menace, haste, deathtouch, lifelink, and shroud.
{8},{t}Destroy all creatures, enchantments, and artifacts. Discard all cards from all hands.