Seadra is a great choice considering how it can deal about 50 damage when it's ready, but you need more energy to prepare it
Note that you won't be able to target dragons that are shrouded, which is quite possible in the deck, but if that's the case then you might want to keep it in hand - or just make Steely Resolve indestructible, for a double wammy
Card not found is a strictly better version of Card not found and is a common as well
Protecting ElshaElsha at level one, going wide at level two, and making ElshaElsha massive and double strikey to end the game, or to start to rebuild after a board wipe
Black Border / Face the Hydra Back Filler Card: Population 3
And you can even get a body on-board when you wouldnt normally when you make a Robot Villain copy of Panharmonicon