Fishing around on the forums yielded the idea of running Djinn with recovery time mods, Sacrifice; and then helminthing Dispensary with Repair Dispensary as an augment.
I don’t think the Vasca behaviour is an exploit though, just another one of Warframe’s surprise mechanics.
I’m most interested in the changes to Teleport and Lethal Teleport (now Quickened Teleport). Gaining a Smoke Screen refresh as well as parkour on kill is very exciting to me, be interested to see if it scales off strength. Blade Storm having its own exalted loadout is also really interesting, although I’m 90% sure it’s going to still be Exposure and Influence, lol.
Other than upcoming changes, in terms of existing changes: Ash had an interesting meta shift around him. Specifically, Smoke Shadow being multiplicative with Acuity on most projectile weapons gave him some excitingly high crit tiers.