Hotkeys 

All four of your abilities for Plexi and R.A.M are bound to Q,W,E,R by default. On the loadout screen.
You can pick the abilities and press any key while hovering over the box to change the hotkey.

Combat Indicators

All abilities now show the area in which they'll affect the field.
For example, Crawgmaw's Slam Down will now show red boxes near it.
Sticking around means you'll get SLAMMED!

Thank you for MasterOfGalaxy for the combat indicator suggestions.

Ability Tweaks

Crimson Coleop's Leap Attack now damages where they land instead of always hitting the enemy regardless of distance.
The dash is quick so you'll have to time your hits correctly.

Thank you to MasterOfGalaxy for the ability tweak suggestion.