Radstorm Radstorm is a deceptively simple card, but Proliferate and Storm appearing on the same card is a hell of a keyword combo
0.16 per cent chance: 0.053 per cent per card (5th card probability rate, regular pack) Immersive Mewtwo EX (Mewtwo Pack) 0.222 per cent (4th card, regular pack)
Its value quickly dropped, though, when it resold for $192,000 just months latermaking it the hobbys biggest known loss
Note that the restrictions wear off the moment Ravenous Tarantula becomes Pain Gainer, so this is a very feasible strategy
First, whenever a creature you control dies, each opponent has to exile a creature of their own--this reminds me of a card like Grave Pact, only better because the casting cost is two Black versus three Black and exiling is better than sacrificing