Video demonstration is here:
https://www.youtube.com/watch?v=LC6KBO_UMpY&feature=youtu.be
You may have heard that ESO does not have a global cooldown, but since it requires animations to finish before the next ability is used, this basically amounts to a GCD. What’s interesting is that there are different “priority levels” with ESO abilities, with some being able to cancel the animations of others while still allowing the cancelled ability to activate. Here’s what I’ve found so far:
Lowest priority:
Light/Heavy Attacks. Activating any ability while using one of these will immediately override the animation and perform the other ability. For this to work on heavy attacks (or presumably any casted ability), you must actually finish most of the “cast time” (not all of it) before casting the activated ability. Here’s a demonstration of this: Video
Middle ground:
Activated abilities that cost Magicka or Stamina – these will cancel the animations of light/heavy attacks if activated while an animation is in progress. If your active ability has a casting or channeling time, you need to test at what point you can interrupt the animation and still get the full effect of the ability. Some can be cancelled earlier than others.
Highest priority:
Bash. (Known as “Interrupt” in your controls/keybinding settings) This ability will cancel ANY other animation that is in progress and begin its own animation.
Block. Simply “blip” the block button to cancel animations for any ability, even bash! Some casted/channeled abilities can be cancelled at the right time so that the ability still finishes casting and can still get on with your next animation.
Thoughts:
What this ultimately means is that to get the best DPS out of your character, you should be weaving abilities together. For example, always start with a light attack and immediately activate your next magicka/stamina ability. The light attack will still go off, but it won’t play the full animation so you end up gaining DPS. Timing on this can be pretty crucial and the faster you are, the better it will work. The highest DPS would be light>activate>bash on every attack, but this is relatively difficult to pull off in practice, especially repetitively on every attack. light>active, light>bash, active>bash are all very easy to pull off and should be done whenever possible.
Another note is that while Bash does the most damage and costs the least stamina with 1h/s – it will also highly benefit 2h and DW users (even bow/staff users in melee range). As long as your stamina doesn’t run out before the enemy is dead, you will simply do more DPS and kill your opponent faster if you weave in light attack and bash cancels with any weapon type.
Please feel free to test this mechanic with abilities from your own class and let us know what you find.