Meganium (26/123) (Theme Deck Exclusive) [HeartGold & SoulSilver: Base Set] Sneak Preview Series 3 Set: Astral Pack 6 Card

Set: Astral Pack 6 Card type: Normal Monster Rarity: Common Attack: 1300 Defense: 1400

you can negate it's activation and destroy it

destroy the monster immediately with this cards effect without flipping it face-up or applying damage calculation

Set: Dark Revelation Volume 4 Card type: Fusion/Effect Monster Rarity: Super Rare Attack: 2800 Defense: 2800 "Elemental HERO Avian" + "Elemental HERO Sparkman" + "Elemental HERO Bubbleman" This monster cannot be Special Summoned except by Fusion Summon

If this card has "Number 107: Galaxy-Eyes Tachyon Dragon" as an Xyz Material

Meganium (26/123) (Theme Deck Exclusive) [HeartGold & SoulSilver: Base Set] Sneak Preview Series 3 Set: Astral Pack 6 CardSet: HeartGold & SoulSilver: Base Set Type: Grass Rarity: Holo Rare Retreat cost: Colorless,Colorless