Chain skill

Sometimes, expecially in Kartia, a shining buttom shows in the middle of the screen, after a skill. This is a chain skill, but it's so fast that i cannot read the key for shortcut and i cant click on it...
Which is the skill that triggers this chain and which is the shortcut?

It's tornado shot.
But I don't know description of skill.

Tornado shot is much more than that described in the skill: it is a AoE skill and it could trigger a chain skills...

Tornado shot is much more than that described in the skill: it is a AoE skill and it could trigger a chain skills...

Tornado shot is the skill you should use when this yellow icon apears.

The skills that enable chain skill are:

Dimensional binding;
Hellbinding;
Mass hellbinding;
Power Bomber;
Giant Punch;
Earth Tremor;
Elemental spike (wind stance);
Uppercut ( i think);

dunno if i missed some, but you need the target to be Knocked down or Air Yoked.

I haven't learn recoil shot on Yul so dunno if this one triggers.

bow strike and recoil shot just knock back your enemy. would be nice if you can knock down enemies ;)