You can place mana crystals in your levels now.  The format's
like this:

{
"classname"     "rc_crystal"
"origin"        "x y z"
"rccryslev"     "L"
}

Where 'L' is an integer between one and six, determining the
type of mana crystal, as such:

	1:	Fireball
	2:	Mana Shield
	3:	Golem
	4:	Chain Lightning
	5:	Stone Curse
	6:	Teleport

So, for example, the MAP file entry...

{
"classname"     "rc_crystal"
"origin"        "43 1004 -456"
"rccryslev"     "3"
}

...would create a Golem Mana Crystal at locate "43 1004 -456".