Hilzu, giant of nature

Trampel, vigilance, Hexproof
When Hilzu, giant of nature enters the
battlefield, you become the monarch.
At the beginning of your postcombat main phase,
add {w}{u}{g} if Hilzu, giant of nature attacked this
turn. If you are the Monarch,
add {w}{w}{u}{u}{g}{g} to your mana pool instead.