Reverend Uncle Bastard
Unapologetic Continual Troublemaker!
For characters like R2-D2 and Miles O'Brien (to name a couple), where they can convert one kind of card energy to another, is that instantaneous?
Like if I'm using The Flash's Always Active ability (one of Kyle's new characters, I think) along with R2-D2, can I draw a card at start of upkeep and have R2-D2 change it to Cartoon energy so Flash can ding the opponent?
Can these characters convert multiple cards at once? R2-D2 says "All those cards are Cartoon Energy, Flash!"
Yes, if the ability is "Always Active" the conversion is instantaneous, free, and can apply to multiple cards. The only time you can't use them is if some feature has made the "always active" ability of the character unavailable (i.e. The Director's web attack).