There is no limit to the damage, so 20 energy x 20 heads = 400 damage
Packaged in a reusable collector box
All the battles in March of the Machines have the Siege subtype and are transforming double-faced cards
But besides its rarity and printing peculiarities (including a missing energy symbol, different fonts, and misspellings), the card also carries a certain gravitas
There are plenty of ways to get similar play from the top of your library effects these days, and its not that powerful, but it does really bug a certain subset of players to have their cards known
The one that comes to mind is Violence in the Safari card: The card even directly references Base, Jungle, and VS series in the card details: Number of Basic Pokmon: 18 cards Nidoran HP40 (Base Set) 03 Nidoran HP60 (Jungle) 03 Venonat HP50 (Extended Sheet) 02 Scyther HP60 (Extended Sheet) 01 Goldeen HP40 (Jungle) 02 Rhyhorn HP70 (Jungle) 02 Tauros HP70 (Extended Sheet) 02 Kangaskhan HP80 (Extended Sheet) 02 Chansey HP120 (Base Set) 01 Number of Evolved Pokmon: 4 cards Nidorino HP60 (Extended Sheet) 01 Nidorina HP60 (Extended Sheet) 01 Venomoth HP70 (Jungle) 01 Seaking HP70 (Jungle) 01 @kurtosisblakeinfini, the Transparent Walls is such a great Koga flavor