Board Thread:Game Discussion/@comment-9204520-20130507145335/@comment-8284783-20130507152104

Personally, I'd probably keep him around just for nostalgia's sake (and well, you never know if events might eventually give specific bonuses like you mentioned).

You wouldn't get much back from selling or using him for upgrades anyway.

Also keep in mind that, if your R3 Grimlock is currently MTM'ed, then he will have much better stats than Episode Firestar for as long as your Firestar hasn't been MTM'ed as well (MTM gives an additional +45% to ATK, which is not shown directly on the card).

An MTM'ed R3 Grimlock should still be more powerful than, say, a maxed (but trans-scanned) Firestar, so you will probably need to keep Grimlock around for a little while longer...