Let them fight

Create a 7/7 legendary creature token named, Godzilla (Defender, Indestructible) with:

Rolle a D6 each upkeep. If the result is even, Godzilla deals damage equal to its power to any target.
If the result is odd Godzilla deals damage equal to its power to you.
Each time Godzilla deals damage. Once it has 5 nuclear counters, transform it to Godzilla King of all Monsters.