NEED HELP: D = defense; R = Recharge. What is X?

Long time player but only recently have I been slotting my IOs class appropriately.

I have a invul/energy tanker and a broadsword/shield scrapper that both benefited BIG time when I slotted for Defense cap -- mobs can barely touch them.

I have an illusion/rad controller that benefited BIG time when I slotted for Recharge -- my phantom army is now virtually perma!

But that makes me wonder what other AT combinations benefit from specific slotting benefits.

Any and all information greatly appreciated.

Stone Armor Brutes/Tankers benefit from +runspeed as well as +recharge

Brutes tend to do well with +EndRec and signficant End Reduction in all powers. (I know, "Water is wet".)

Blasters get enormous benefits (at least I do) from Stealth-in-sprint .

Warshades and recharge. More survivability and more damage.

Masterminds and +HP and +regen. Bodyguard mode is effectively resistance, so upping your health pool and your regen can work wonders.

Doms and Recharge, big time. Getting perma-dom is transformative, even post domination changes.

X is +rec and +max end for many of my alts. Increasing maximum endurance generally helps more by the time i start slotting for set bonuses.

Let's not forget defense, especially ranged defense, for squishies such as doms, corrupters and blasters.

Thanks for the direction. Had thought of ranged defense for my blasters, but wasn't sure if there wasn't something else I should be looking at.

With defense, people tend to go either ranged or S/L for people who start with none.

I've never been softcapped on a "start with none" character, but one thing I find very handy is to get to about 32.5% in the key areas. One small purple then softcaps you for 60 seconds, and you can carry 20 of them...