Harness Divine Power

Paladin feature
1 Bonus Action | Self | Instantaneous
You expend a use of your Channel Divinity to
fuel your spells. You touch your holy symbol,
utter a prayer, and regain one expended spell
slot, the lv. of which can be no higher than
half your proficiency bonus (rounded up).
3rd lv., once; 7th lv., twice; and 15th lv.,
thrice.