Originally Posted by Drenhar

In my experiences, yeah I would much rather have the IUP. I would rather pestilence > blood boil than use corpse explosion during my runic dump time. By the time i use blood boil my CD are up and I have to go back to my rotation; adding corpse explosion would throw that off. Damage just isn't justifyable either. Add to the fact that we can't always use corpse either and it's a really iffy trait. (think mechanical trash mobs; doesn't happen often but it does happen).

The movement speed from IUP is a lifesaver. Think grobbulus or especially heigan it gives you more room for error (or lag) to get where you need to be quicker. Even 5 man's, something like loken. If we're running from his nova i can get out and back the quickest and minimize what damage i take and maximize how often i'm digging my weapon into his back.