You searched for RUNE ENHANCERS
1. rune enhancers
Syntax: bind <rune> <rune enhancer>
Rune enhancers are objects which can be bound with runes to increase
their chance of success.
For example, if a rune has 1 enhancement slot and its chance of success is
90% and you have a rune enhancer that will increase that success by 5%, you
can bind the two together and the rune will then have 95% chance of success
and decrement the enhancement slot.