Announcer

When Announcer enters the battlefield,
search your library for a card named Battle
for Dream Island and put it onto the battlefield.
Cumulative upkeep {g}
Indestructible, Can't be Countered
Sacrifice an artifact: Create a number of treasure
tokens equal to that artifact's converted mana cost.
{4}{w}{u}{b}{r}{g}, Sacrifice Announcer: Take an
extra turn after this one.
Escape - {1}{w}{u}{b}{g}, Exile five cards
from your graveyard