The Gambler

you will gain the luck of the gambler

luck of the gambler

You can reroll any 1 you roll (2 if you're a halfling)

expanded luck of the gambler

any friendly creature within 30 feet of you can reroll any 1 you roll (2 if they're a halfling)

the gamblers favor

every time you cast a spell of 1st level or higher roll a charisma check with a dc 10. if you fail your spell fails and you cannot use this feature again until a long rest. if you succeed, you do the spell does not expend a spell slot, and the dc increases by 2.

luck of the the gamblers

if any being within 60 feet of you rolls a natural 20, you may choose to make that creature reroll.