Bradog, Eater of All

Bradog, Eater of All enters the battlefield with +X/+0.
When Bradog, Eater of All enters the battlefield, deal X damage to all other creatures.
Flying, Menace, Trample
{3}{r}: Bradog, Eater of All gets +2/+0 until end of turn.
{r}{r}{t}: Bradog, Eater of All deals damage equal to its power to target creature.
{5}{r}{r}: {ut} Bradog, Eater of All