Vision HERO Gravito - Battles of Legend: Chapter 1 (BLC1)

If this card is Normal or Special Summoned: You can target 1 of your banished "HERO" monsters; add it to your hand. You can Tribute this card, then target 2 "Vision HERO" Monster Cards in your Spell & Trap Zone; Special Summon them. You can only use each effect of "Vision HERO Gravito" once per turn.