There's some weird dev post today or yesterday about how the Dom proc and other ATO procs have a lesser chance to fire in AOEs, so that they still only go off the "average" amount of times they would in a single target power.
At least that is what I *think* he was saying. Which is odd. I still may leave it in Roots as I use Roots a lot so that should still result in most procs triggered (whereas I use strangler more sparingly).
Here's a rebuild of my Plant/Fire/Fire based on slotting the ATO set.
The 5 non-proc ATOs go into Vines in place of Basiliks.
The dmg proc goes into Strangler. I can't tell if it would be better to go into Roots in place of the Trap damage proc. Maybe. AOE = more chances to proc off targets. That would let me keep an IO slot in creepers
Had to pull a recharge IO out of creepers and out of hasten, but the I will +5 the remainders and also benefit from the higher +rchrg of the set when catalyzed. (Could put one back in creepers to slot Posi Blast dmg proc if I put the Dom ATO proc in Roots).
And yes this build is designed to hit around ~28% ranged def, just for kicks.
Version 2: