Cast When Damage Taken level of triggered gem

Hello.

I have character 72 lvl.
I have staff +3 fire gems.
Detonate Dead Skill have 21 lvl and requires 72 lvl character to use it.
Staff +3 and Empower 4 lvl gives 28lvl Detonate Dead

Question is why i can use 28lvl skill directly, but Cast When Damage Taken 22lvl can't trigger it?
The inscription reads: This Gem Can Only Support Skill Gems Requiring Level 74 or lower!!!!
Gem requires 72! Because 72lvl character can use it!

There is two ways:
1) 28lvl gems must require 86+ lvl character
2) Cast When Damage Taken 21 lvl must trigger any lvl of active skill gems.

p.s. google translate

what lvl is the gem itself? 1, 2 ,10, 20???


edit: nevermind

cast when damage taken wiki =
This Gem can only Support Skill Gems requiring Level (38-70) or lower
so your lvl 72 can't be triggered...

i might be wrong.

edit... nevermind, just saw your quote about lvl 74 and lower...

last try...
lvl 28 detonate dead = lvl 86
your cwdt is not hight enough to cast lvl 86 spell.

Cast when damage taken checks the level requirement of the gem being used, it's a little confusing but effects that increase the level of the gem don't increase the requirements to equip and use it but do increase them for cast when damage taken.

"

Beefeata wrote:

last try...
lvl 28 detonate dead = lvl 86
your cwdt is not hight enough to cast lvl 86 spell.

This ^

"

Beefeata wrote:

last try...
lvl 28 detonate dead = lvl 86
your cwdt is not hight enough to cast lvl 86 spell.

Even if u have a cwdt lvl 28, it wont work with detonate dead cause its not a spell.

Not so DD can be "cast" by CWDT. I have used it before.
It is not a spell per se but can be cast.

^Detonate death is a spell, thus it can be cast or triggered.

The secondary effect = corpse explosion is not a spell but a secondary effect of using the spell.
Which is why it cannot be scaled with "% spell" or "%spell crit" but only by global modifiers that effect it's tags.(aoe/fire/global crit)

Peace,

-Boem-