You searched for Nexus spell
1. nexus spell
Syntax: cast nexus <target>
This spell is virtually identical to portal (see 'help portal'), with the
only difference being that while portal creates a one‑way gate, a nexus
spell makes a two‑sided gate. It also lasts longer than the lower‑powered
portal spell. Both spells require an additional power source, the secret
of which has been lost...