Santa Claus

When Santa Claus enters the battlefield, create 3 2/2 Elf tokens with "When this creature is summoned by a holiday type creature, create 3 0/0 Present tokens with "When this creature is summoned by a holiday type creature, you gain 1 life" and "When this creature dies, target holiday type creature that isn't named "Present" gets a +1/+1 counter.""
Cannot be countered
When Santa Claus dies, destroy all holiday type creatures you control