Guilds can utilize Primal Energy from players. In any
guild check room, a guild member can energize the guild
with units of Primal Energy. For each unit so energized,
the guild will credit the guild member with 30k gold credit.
This guild credit is then used automatically towards up
to half of the gold training cost when training in that
guild.

If you got just reincarnated and have Reinc-Exp, you can
get guild credit to advance without paying gold for training.
(cash-free Reinc).

If you would like to have "Any guild" credit, ask a Druid
for a conversion of your PE. You will get 30k gold credit,
maybe minus a small tax, for any PE spent. But now it's
useable for secondary and tertiary guilds, too.

'show credit' - to see your credit in various guilds.
'help spell transform primal energy' - to see the spell