Options include: Capsize, Cyclonic Rift, Domineering Will, Evacuation, Into the Roil, Pongify, Rapid Hybridization, Curse of the Swine, Devastation Tide, Oblivion Stone, Perilous Vault, Aetherspouts, Polymorphist's Jest, Nevinyrral's Disk, Perilous Vault, Fade Away Domineering Will is another super fun addition from Commander 2014
It is significantly more expensive than average however
Malevolent Whispers: I am not getting this 'madness cost same as casting cost' thing
Please let me know if you have any information to contribute about any specific cards shown or not shown here
Some amount of the time our opponents hand will have nothing but land, or perhaps lands and dead cards
In case these permanents got +1/+1 or -1/-1 counters while they were face down, those counters wont disappear after the cards are turned face up, but they wont do much as long as the permanents arent creatures