Avatar skill chains

It would be nice to have more avatar abilities with skill chain attributes.

I'm new to the class, only level 35 so far. but since level 15 I've been setting my avatars up for gravitation skill chains. Though looking at the wiki I noticed that after Shiva's double slap (scission attribute) at level 50 there's no more of that. In my opinion this heavily dampens a summoners maximum damage capacity.

That sounds cool.

I'm level 30 and setting up ifrit for skill chains dealing over 600 damage in total on occasion just from ifrit and the sc