Creature - Horror Remove Timmerian Fiends from your deck before playing if you're not playing for ante. {B}{B}{B}, Sacrifice Timmerian Fiends: The owner of target artifact may ante the top card of his or her library. If that player doesn't, exchange ownership of that artifact and Timmerian Fiends. Put the artifact card into your graveyard and Timmerian Fiends from anywhere into that player's graveyard. This change in ownership is permanent.1
Both this card and the target must be in play when announcing the ability. The target must be in play when the ability resolves or nothing happens. [D'Angelo 1998/11/16]
Vintage tournaments (see Rule 801) have always banned this card since it is only used in games for Ante.
Legacy tournaments (see Rule 802) have always banned this card.
Extended tournaments (see Rule 803) have always banned this card.
Standard (Type 2) tournaments (see Rule 804) have always banned this card.
Ice Age and Ice Age/Homelands/Alliances block format tournaments (see Rule 806.3) have always banned this card.
Note - This card was creature type "Fiend" until Oracle 2007/10/01, when it became "Horror".