OXY, the Hammerrager

If OXY, the Hammerrager comes into play,
destroy all nonland permanents.
OXY, the Hammerrager life total is equal
to the number of Loyalitycounters from Protectorshield XY.
All damage of sources controllers can not more
than 20% from the total damage that
would be dealt by the controllers sources.
If OXY, the Hammerrager life
becomes 25% of his life total, transform him.