Whenever Goblin Assassin or another Goblin enters the battlefield, each player flips a coin. Each player whose coin comes up tails sacrifices a creature.
The more victims he kills, the more likely he is to get the right one.
Near Mint - $0.70
Lightly Played - $0.60
Played - $0.50
Heavily Played - $0.40
Damaged - $0.40
Near Mint Non-English - $0.70
Lightly Played Non-English - $0.60
Played Non-English - $0.50
Heavily Played Non-English - $0.40
Damaged Non-English - $0.40