18 Treasure Mountain Card 222/2 04 EN.6, Steel Ink Treasure Mountain is an amazing location card in play, although it costs five ink to put on the table
Kill any critter with two or less toughness regardless of regeneration or indestructibility, and then have the Ring tempt you
Two of them -- Slinn Voda, the Rising Deep and Whelming Wave -- bounce non-Sea Monsters, and the third, Scourge of Fleets, only bounce opposing creatures
Artifact Creature Phyrexian Myr Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) Whenever Ichorclaw Myr becomes blocked, it gets +2/+2 until end of turn
The most important takeaway here should be that Farseek / Thragtusk / Sphinxs Revelation is my pick for the best shell in Standard at the moment
Nevertheless, they are absurdly powerful theft commanders, just make sure you're talking to the table before you start playing to make sure everyone knows what they're in for.