Interspell Communication
Utilizing the following tricks, otherwise separate spells may communicate with each other.

Sends the given fragment to all spells within 16 blocks. Range may be extended by the given number at the cost of mana.

Returns all messages received on the tick after they were received. Must be provided with a timeout after which to return anyway.
A slot fragment may be supplied as the second argument to Dispatch Ploy instead of a number,which will send the message into the item present in that slot, if possible.
Ploy of receipt works similarly for receiving messages from items.
Not all items are able to channel messages.