1 "HERO" monster + 1 WATER monster Must be Fusion Summoned. Gains 500 ATK for each WATER monster on the field, except "Elemental HERO Absolute Zero". If this card leaves the field: Destroy all monsters your opponent controls.
If this card is in your Graveyard: You can banish 1 other Plant-Type monster from your Graveyard; Special Summon this card from your Graveyard and increase its Level by the Level of that banished monster. Each player can only activate the effect of "Spore" once per Duel.