They can continuously recycle themselves, and thanks to powerful generic support cards like Isolde, Two Tales Of The Noble Knights, Infernoble Knights can go into any kind of Monster they need at any given time
The only way to destroy this card is through other effects, or by having an equal number of Monsters on both sides of the field at any one End Phase
Each 25th Anniversary Tin: Dueling Mirrors contains three 13-card Mega Packs: The set contains 400 cards: English1st Edition French1st Edition German1st Edition Italian1st Edition Portuguese1st Edition Spanish1st Edition
The most valuable printing of this card would have been from Magic's very first set, Limited Edition Alpha
At the same time, you could take advantage of floodgates like Deck Lockdown by bouncing them with Gol'gar during your turn, make your plays and activate them again before ending your turn, as a on/off switch