Whenever a permanent an opponent controls is put into a graveyard, put that card onto the battlefield under your control unless that opponent pays 3 life. Suddenly every lost permanent is a potential ally for you, and if not, your opponents have to lose life just to stop you from stealing their stuff
For example, Dark Magician Girl gains an additional 300 ATK for every Dark Magician and Magician of Black Chaos in either players graveyard
When Gwenom attacks, you can cast the top card of your library that turn, and you can pay life instead of mana if you so desire
3 mana and 3 life for 3 cards is just a great rate, and the caveat of requiring 3 colors of mana was easy to fulfill between Battle lands and fetchlands
[72] While the Mythic Championships and Magic Pro League catered to the highest level of competitive play, the Player's Tour system was meant to give a path for average players to go from their local game store to the World Championship
It never featured in any starter decks for Rise of the Floodborn or later sets, however, so acquiring copies of the card was still a luck of the draw situation