Test Bear (Quarter Century Secret Rare)

If you control a "Gladiator Beast" monster Special Summoned from the Deck/Extra Deck, you can Special Summon this card (from your hand). You can only Special Summon "Test Bear" once per turn this way. You can Tribute this card, then shuffle 1 "Gladiator Beast" monster from your hand or face-up field into the Deck/Extra Deck; Special Summon up to 2 "Gladiator Beast" monsters from your Deck. (This is treated as a Special Summon by a "Gladiator Beast" monster's effect.) You can only use this effect of "Test Bear" once per turn.