multiple monster instances

[jester47]

I am wondering what the EL is for an encounter where the monster "respawns." Here is an example:

Dohicky X generates a gaurdian of CR Y. There is always 1 guardian. When the current guardian dies a new fresh guardian takes its place. This continues until Dohicky X is destroyed. How does one determine the EL for such an encounter?

Aaron.

 

[Vaxalon]

That would depend on how difficult it is to destroy the doohicky.

Try these on for size:

If a solid blow from a missile weapon could do it (mirror) i'd say it would be +1 EL.

If it's as tough as a heavy wooden object (DR 5, 100 hp) I'd give it +2 EL.

If it's as tough as a heavy stone object (DR 8, 200 hp) I'd give it +3 EL.

If it's as tough as a heavy iron object (DR 10, 400 hp) I'd give it +4 EL.

 

[the Jester]

I'd give doohickey X a CR about equal to monster Y's plus one or thereabouts.

 

[jester47]

Well the problem is not the dohicky. The problem is that the monster keeps coming back until the dhohicky is destroyed. So depending on how dense the players are or how obvious the DM makes it that the monster comes from the dohicky it could be 1 monster they fight or 1+n. where n is the number of respawns until they figure out "hey george, lets smash the dohicky."

Aaron.

 

[jester47]

Looking at the EL section in the DMG this encounter will wear out a party with a level equivalent to the CR after the third respawn. This is an encounter that could down a whole party especially if the party is fairly dense. I think that an indicator that allows a Int check (DC 15) is called for. Thanks.

Aaron.

 

[(Psi)SeveredHead]

Treat it like a creature that can cast Summon Monster at will. In fact, it's weaker, since it can only have one spawn at a time.

Or compare it to the treant. It can control 2 trees, but it can animate more if the trees die. The obvious answer, kill the doohickey first.