Vveiran, Alpha Dark Regent

Flying, Trample, Haste, Deathtouch
Other Dragons you control get +2/-1 and
deathtouch
{b}{r}, {x}, {t}: Target non-Legendary dragon you control gets +X/+X, deathtouch, trample, haste,
and, "When an opponent discards a card, all other dragons you control get +2/+2 until end of turn."