Level 5 Warlocks
At level 5, you may regen 1 spell slot with a call to your patron. You channel for 1 minute dropping any spells you are concentrating on. You may still cast spells, but concentration will not hold. Attacks will not stop your channel, but dropping to 0 hit points will stop the channel and you miss out on it. You may do this once per long rest. You may only channel to regenerate a used spell slot. You may not channel to get more spell slots than warlock has at that level. You also regain all your eldritch blast slots with this.