Stealth Dragon, Raidon Kunai

:When your other rear-guard is placed on from bind zone, [bind this unit], and that unit gets +5000 until end of turn. If you did not this turn, 1. (Bind zone):When your grade 3 or greater vanguard with "Shojodoji" in its card name is attacked, you may call this card to . If you called a card, this unit gets +5000 until end of that battle.