artificer spell slots

Rangers are primarily martial fighters; they gain Spell Slots at 1/2 the rate of a full spellcaster. ... Spellcasting Level 1 Spell Slots Unlocked: 2 You gain two Level 1 Spell Slots.

This effectively gave Children of the Rift infinite spell slots. You’d use up your spell slots, convert your Sorcery Points into new spell slots, sacrifice your HP to get Sorcery Points again, and cast Greater Restoration.

For example, if you’re a level 4 Wizard, you can recover up to two levels’ worth of spell slots, regaining either one level 2 spell slot or two level 1 spell slots.