Telepathic Network

You forge a telepathic link among up to eight willing creatures of your choice within range that you can perceive with any sense, psychically linking each creature to all the others for the duration. Creatures with Intelligence scores of 2 or less aren't affected by this spell. The spell cannot target creatures if they cannot be perceived, or are unconscious. This spell cannot benefit from the effects of other spells, and can be blocked by 1 foot of any non transparent material or a thin sheet of lead.

Until the spell ends, the targets can communicate telepathically in short messages through the bond as a free action on their turn, and must have a common language to communicate. The communication is only possible if the targets are within 100 feet of the caster. If a target exits the area the spell ends on the target till they enter the area again.

Note: I created this spell to deal with the problem of players being strategic during combat as though there characters could outright talk to each other and to deal with the problem of them taking to long, so in order to deal with this problem I made this which allows players to communicate with each other in the same way. The catch is that they can only communicate in short messages, so the players would have to chose their words carefully; not only that they can only communicate within a limited range, and can only do so on their turn. As a result of the restrictions the players can still work together as a tactical team, but they are forced to do so in a manner that speeds up combat.