Gatekeepers manipulate the environment (tiles), which can cause Player to fall for a trap- instantly entering the gate to the Connected Plane. If this happens the game is over.
In addition, each gatekeeper possesses one or more unique powers, some of which can be shared with Player after bonding with the gatekeeper.
The first gatekeeper, Silhouette, has the unique power Retaliate.
Lastly, the stats and abilities of the gatekeeper are influenced, partially or in whole, by their element and form. Gatekeepers are said to have mastered their element.