Concentration Checks - interesting situation

[Shar Tahl]

I have a bad guy that is taking continuous bleeding damage, which requires a concentration check of 10+ 1/2 bleeding + spell level. He is going to cast a spell defensively, which is DC 15 + double spell level.

So he has DC 13+2d6/2 for the damage and DC 21 on the casting defensively. Does he make 2 checks or does he make one check at the highest DC, or some hybrid of those two? I do not see anything RAW that covers this.

[ciretose]

Shar Tahl wrote:

I have a bad guy that is taking continuous bleeding damage, which requires a concentration check of 10+ 1/2 bleeding + spell level. He is going to cast a spell defensively, which is DC 15 + double spell level.

So he has DC 13+2d6/2 for the damage and DC 21 on the casting defensively. Does he make 2 checks or does he make one check at the highest DC, or some hybrid of those two? I do not see anything RAW that covers this.

Casting on the defensive is I believe a concentration check, so I would add the damage to the difficulty of the casting on the defensive check.

[Shar Tahl]

So he took 9 damage this round just now. That would put him at DC 15 + (SL3x2=6)+ 9 Damage = DC 30? ugh :P my poor bad guy

[Starglim]

Shar Tahl wrote:

So he took 9 damage this round just now. That would put him at DC 15 + (SL3x2=6)+ 9 Damage = DC 30? ugh :P my poor bad guy

If I understand the suggestion correctly, you'd just roll the effect of continuous damage into casting defensively for DC 15 + (3x2) + (9/2) = 25.

[Shar Tahl]

thats right. Half bleeding. my mistake

[James Risner]

Shar Tahl wrote:

So he has DC 13+2d6/2 for the damage and DC 21 on the casting defensively.

I'd roll two checks.

[Huma]

Yeah, I'd do two checks.