Well, that's a lot to chew, before even getting down to what these battles actually do
The Rolling Attack ability requires you cast a whopping three or more spells in the turn to give it trample, which would suggest a storm strategy, But the Electric Thunder ability triggers whenever Blanka becomes the target of a spell, and most storm spells dont target a creature
Only given out through a Daisuki Club lottery to 100 lucky entrants in 2009
A hivemind ruled by a being known as the Mycotyrant
Slayers Stronghold ($2) This is in a lot more decks that you think, and aside from the SL version thats all in black, one of the only special versions out there
This is incredibly powerful in conjunction with the right cards, as it allows you to really accelerate the resources you have available and stay a step ahead of your opponent all the way