A PC used a spell to freeze water while another held goblin’s head under the water…

@WJNMN @JeremyECrawfordLost Mines; a PC used a spell to freeze water while another held goblin’s head under the water. WTF do I do? I'd rule the goblin begins to suffocate #wotcstaff

— (((Mike Mearls))) (@mikemearls) August 12, 2016