Sozin, The Ruthless

Ward {2}
Whenever Sozin, The Ruthless or another legendary Firebender enters under your control amass Firebenders 2.
Whenever an Army or a legendary Firebender you control deals combat damage to a player exile target instant or sorcery from your graveyard. Cast a copy
of that spell.
Armies and legnedary Firebenders you control have trample.