Hessong, Bringer of Laughter

When Hessong enters the battlefield, float {x} mana of any color
Hessong's toughness is equal to the number of creatures on the battlefield multiplied by 2
Hessong's power is equal to the number of creatures your opponents control, multiplied by 2
{x}: For the next {x} turns, whenever Hessong attacks, create two green 1/1 Borbicle creature tokens
If another creature you control would be destroyed, you may sacrifice Hessong instead: destroy all non-land permanents your opponents control