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[iruinedyourday]

Spell slot 1 info:

Spell in slot one has a 5 second Cool down 4 second cast.

Cast 1.

Click.

Pause 1 second.

Recast.

4 second cast time..

..spell fires at 5.01 seconds after first cast & succeeds.

If you did not pause 1 second spell would fire while the spell was "cooling down" and would not meet cool Dow requirements.

Without this slot 1 trick the 5 second cool down 4 second cast would require 9 seconds to fire twice.

You effectively are able to cast the spell every 5.01 seconds instead.

Hope that's clear!