Approach of the Second Swan

When you cast Approach of the Second Swan,
you may pay 15 life. If you do, Approach of the
Second Swan deals X damage divided as you
choose among 9 targets, where X is your life total
You gain 1,000,000,000 life and create two 21/21 Avatar creature tokens with indestructible, islandwalk, and reach called OmegaSwan
When this spell resolves, exile it