Extremely late response but, you can either use multiselect (its semi-hidden, just search for "multi" on the specials screen) or Entity lists.
The difference between these 2 is that multiselect allows you to preselect a list of entities (then asks you how many of them you'd like to spawn when the rule triggers), while entity lists are built on the fly and insert the entities into the list as the rule matches.

Multiselect:
click -----> spawn multi (monstro, gaper, fly)
[will spawn either a monstro a gaper or a fly]

Entity List:
Monsters----on damage-->Add to list A
click ----->List A
[will spawn a random monster that you previously damaged]

As for charming stuff, you can just use the Add Property special, charmed is one of the options.

引用自 JSG：

Extremely late response but, you can either use multiselect (its semi-hidden, just search for "multi" on the specials screen) or Entity lists.
The difference between these 2 is that multiselect allows you to preselect a list of entities (then asks you how many of them you'd like to spawn when the rule triggers), while entity lists are built on the fly and insert the entities into the list as the rule matches.

Multiselect:
click -----> spawn multi (monstro, gaper, fly)
[will spawn either a monstro a gaper or a fly]

Entity List:
Monsters----on damage-->Add to list A
click ----->List A
[will spawn a random monster that you previously damaged]

As for charming stuff, you can just use the Add Property special, charmed is one of the options.

ok, but how do i make them die 3 seconds later

because i can only have 1 special mod, cant have both charmed and dies 3 seconds later

引用自 DarkSun：

because i can only have 1 special mod, cant have both charmed and dies 3 seconds later

what?, dunno what you mean by special mod.
Anyway, you need to use labels, like tis:

click -----> whatever[label A]
Label A -----> charm
Label A -----> die