Sparkheart Tiger

Whenever you cast an instant or sorcery spell,
put a +1/+1 counter on Sparkheart Tiger.
When Sparkheart Tiger dies choose one:
• Deal X damage to any target where X is the
number of +1/+1 counters on Sparkheart Tiger.
• Create a blue X/X Weird creature token with
flying where X is the number of +1/+1 counters
on Sparkheart Tiger.