What ability(-ies) "seems" powerful to you?

This is probably the wrong section for this, but I wanted to do this just for the fun of it. Abilities aside from ultimates can give champions their.....feature? (probably the wrong word) And define how powerful they are. Not just by how much damage they do, but how powerful it looks and sounds as well.

Which ability(-ies) in the game do you think "seems" powerful?

A few personal favorites: - Q - Piercing Arrow: This ability is probably one of my most favorite just because when charging it, it looks like it's getting more powerful and when it hits someone it goes "ka-pow!". Especially when you get some damage, it starts to really be powerful.

- Empowered Q - Soulflare and Empowered E - Defiance: These two abilities when used just gives me that feel that she is a powerful Mage. When using her R - Mantra, I like how it gives Karma that glow on herself.

Old Q - Mace of Spades - Ah the old Q. Despite not looking that powerful, it honestly gave me that feel from his splash art and old title (The Master of Metal). The concentration and spreading of his Q gave me that "BOOM!" feel whenever it smacks something or multiple things.