bugged priority
ping lands (lands that do 1 damage to controller to use colored mana) such as underground river or brushland do not grant the controller priority if using them would be the only way for the controller to cast a spell. So basically I had an untapped underground river and an untapped island or skybridge towers (a land that couldnt make black mana) and I had go for the throat in hand. The opponent plays Feldon a 2/1 haste creature and attacks with it but at no point did the client give me priority to cast go for the throat( i ended up losing do to exact damage which wouldnt have happened if I could have killed Feldon before he hit me) Anyway, it appears that these lands dont register priority properly if the land will ping you. PLS FIX WIZARDS I DONT WANT TO ALWAYS USE FULL CONTROL.