TBF Kurenai is usefull, while characters like Anbu Itachi are well... useless, at best. Plus his shards are in the 3v3 packs (they are rares, i know...)

Edo Deidara even with trials isn't a good choice imo. AC Deidara is way better than him (still not good enough in this meta), and you don't need to waste your vials/protections.

But some free toons would be nice, so why not. ^^