The Beholder seems particularly vulnerable to a few powerful priest spells:
Freedom of Movement (level 4, no concentration, negates paralyzing, slowing, telekinetic, and petrification rays)
Protection from Evil (level 1, concentration, negates charm and fear rays)
Bless (level 1, concentration, bolsters resistance to all rays)
If most of the party is covered by FOM, there isn't much the beholder can do about it. If he covers them with his anti-magic cone, his eye rays won't work. With PFE also, the beholder only has a 40% chance for any given eye ray to work! His priority should be taking on the PFE or Bless casters, to kill them or get them to break concentration (he might not be able to tell who cast which spell though), but even so his rays only have a 40% chance of even affecting that character. So my question is:
Can he project his anti-magic cone onto spellcasters concentrating on PFE and Bless, suppress the spells, and blast his eye rays at the rest of the party outside of the cone? I would say no based on strict RAW, but it does seem counter-intuitive considering that you cannot cast a spell out of an antimagic field from within an antimagic field.
Freedom of Movement (level 4, no concentration, negates paralyzing, slowing, telekinetic, and petrification rays)
Protection from Evil (level 1, concentration, negates charm and fear rays)
Bless (level 1, concentration, bolsters resistance to all rays)
If most of the party is covered by FOM, there isn't much the beholder can do about it. If he covers them with his anti-magic cone, his eye rays won't work. With PFE also, the beholder only has a 40% chance for any given eye ray to work! His priority should be taking on the PFE or Bless casters, to kill them or get them to break concentration (he might not be able to tell who cast which spell though), but even so his rays only have a 40% chance of even affecting that character. So my question is:
Can he project his anti-magic cone onto spellcasters concentrating on PFE and Bless, suppress the spells, and blast his eye rays at the rest of the party outside of the cone? I would say no based on strict RAW, but it does seem counter-intuitive considering that you cannot cast a spell out of an antimagic field from within an antimagic field.