No wonder it was first printed in Portal (1997), then in the other two Portal sets and finally it displaced the classic Card not found and Card not found in Core Sets from Sixth Edition all the way through to Tenth Edition, printed as un uncommon in each case
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A single connection can drop a Siege-Gang Commander or, god forbid, a Muxus, Goblin Grandee for free, quickly creating overwhelming board states
Then if there are fifteen or more artifact cards in your graveyard, target opponent loses the game.
Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)
Tainted AEther