Thrasta Tempests Roar

“This spell costs 3 less to cast for each other spell cast this turn. <br>Trample, haste <br>Trample over planeswalkers <em>(This creature can deal excess combat damage to the controller of the planeswalker it's attacking)</em> <br>Thrasta, Tempest's Roar has hexproof as long as it entered the battlefield this turn.”