Is mana talent node worth it for 3*s?

Just wondering if anyone thinks the 2% (or 4% for that matter) mana talent node is actually worth it for 3 star heroes? The hero currently in question is Aqeela (average speed rogue)

4% is worth it for S1 heroes with costume because you can charge them with both these things in 6 tiles instead of 7 tiles in tournaments.


Can also be worthwhile if you use mana boosting heros like Tuck or Bachum