Question about concentration check and spellcasting, help hoped for.

Post/Author/DateTimePost
#1

senko

Jan 16, 2009 7:08:34
This came up in tonights game and no one knew the answer, can anyone ell me which of the following (if any) is right and if none of them are what is the correct way of resolving.

The situation was a mage was casting a spell and we weren't sure what damage if any should affect his concentration check. The sequence of events (relevant characters only the rest of the party was fighting other opponents) was . . .

Round 1
Player 1 missed
Enemy Mage missed with a preprepared attack
Player 2 did 17 points of damage to the mage

Round 2
Player 1 did 5 points of damage to the mage
Enemy Mage made a concentration check to cast defensively (no attacks of opportunity) and then . . .

we couldn't decide if he needed to make another one and if so what situation should apply should it be

1) Mage needs to make a concetration check to cast a spell applying all the damage done between his attacks (10 + 17 from the previous round and + 5 from this one) and the spell goes off on his inititive.
2) Mage needs to make a concentration check to cast a spell applying all damage done this round (10 + 5 from the first player and then any done by the second one if they succeded in hitting him) and then the spell goes off at the end of the round.
3) Mage need only make a concentration check if he actually takes damage from an attack of opportunity from his casting on his inititive otherwise his spell goes off with no problems.
#2

backstabbist

Jan 16, 2009 11:48:26
We play 1, all damage since the Mages last action (1 full round)

To play style 2, if the mage has Inititive and always goes before the party, then he will never take damage "in that round" before he casts even if folks are slapping him around like a ragdoll

Method 3 is plain wrong.
#3

RavingDork

Jan 16, 2009 15:06:03
This came up in tonights game and no one knew the answer, can anyone ell me which of the following (if any) is right and if none of them are what is the correct way of resolving.

The situation was a mage was casting a spell and we weren't sure what damage if any should affect his concentration check. The sequence of events (relevant characters only the rest of the party was fighting other opponents) was . . .

Round 1
Player 1 missed
Enemy Mage missed with a preprepared attack
Player 2 did 17 points of damage to the mage

Round 2
Player 1 did 5 points of damage to the mage
Enemy Mage made a concentration check to cast defensively (no attacks of opportunity) and then . . .

we couldn't decide if he needed to make another one and if so what situation should apply should it be

1) Mage needs to make a concetration check to cast a spell applying all the damage done between his attacks (10 + 17 from the previous round and + 5 from this one) and the spell goes off on his inititive.
2) Mage needs to make a concentration check to cast a spell applying all damage done this round (10 + 5 from the first player and then any done by the second one if they succeded in hitting him) and then the spell goes off at the end of the round.
3) Mage need only make a concentration check if he actually takes damage from an attack of opportunity from his casting on his inititive otherwise his spell goes off with no problems.

It's actually more narrowly define than #3 if I am not mistaken. Hitting a mage during his turn (or on other's turns) won't do anything. You have to hit them when the are casting the spell, which generally requires a prepared action or an attack of opportunity (unless the spell takes multiple rounds to cast).

In your above example, the only Concentration check the mage should be making is the one to cast defensively.
#4

backstabbist

Jan 16, 2009 15:53:26
Looks like my group missed the footnote in Concentration regarding fullround actions:[INDENT]Damaged during the action 1 . . . 10 + damage dealt
1 Such as an activity that requires more than a single full-round action. Also from an attack of opportunity or readied attack made in response to the action being taken (for activities requiring no more than a full-round action).[/INDENT]

No wonder I have such a hard time with Mages in d&d ;)
#5

senko

Jan 16, 2009 19:15:22
So its number 3 then, mage makes concentration check to cast defensively, if they fail nearby people gets attacks of opportunity and if they a hit a second check taking into account that damage, if they succeed no other check. Thanks for the help.
#6

RavingDork

Jan 16, 2009 19:24:48
So its number 3 then, mage makes concentration check to cast defensively, if they fail nearby people gets attacks of opportunity and if they a hit a second check taking into account that damage, if they succeed no other check. Thanks for the help.

Actually, that's wrong.

As I pointed out, the window in which to disrupt the spells is much narrower than #3 suggests. Also, if they fail the Concentration check to cast defensively, enemies are still denied the ability to make attacks of opportunity against them, they just lose the spell they were trying to cast as a result.

The rules for this stuff are spelled out quite clearly on page 330 of the d20 Modern core rulebook
#7

senko

Jan 16, 2009 22:24:04
I see must have missed that (I did look but all I saw was something redirecting me back to the general concentration information), guess I'll need to reread it thanks for correcting me again.