i just realized something, is the entire purpose of this card to be used with a reflecting shield? i dont like the forced combo, but i have a suggestion.
when energy worm is destroyed both player take 5 damage. that way it is not a forced combo, but still deals 10 damage with mirror shield.
while writing this i just realized something that everyone might have been confused about. does energy worm deal spell damage, or is it unstable that does? maybe this isnt like psion at all and i just got confused.