I was curious as what units are good fillers (I.e. 5* or 4* @ +4 evolutions. For your deck when you don't have enough cost-space)? Are there some that more people use than others? I know people use Elisha if since she has a bit of health and is pound unit in defensive decks. But what others get used a lot or do you find effective?
2* Aigai/Sippar (Aigai is stronger, but Sippar can launch, iirc - how embarrassing to get launched by a 2*!)
3* Skiekron (but her paralysis blade support skill seems impossible to unlock), or Shax.
4* Amdukias. Or maybe Grendel for looks.
5* Nanna (DC=12 glitch!), or maybe Reginleiv, Gaap, Forcas, or Puzuzu.
Some of these are probably outdated choices, as newer units get better stats and passives. But once you break a low rarity unit, it's easy to stick with it.