Haitron, Blight of the South

Flying, first strike, trample.
Each {x} paid when casting this adds +1/+0.
When Haitron, Blight of the South enters the battlefield, scry 3, then draw a card.
{t}{r}{r}{r} Casualty 3. Create two food tokens.
{c}{r}{x} Suspend {x}.
{t}{b}{r}{r} Sacrifice this card. Create 3 treasure tokens.