If you are making an attack and you roll a natural 1 on the die, you immediately know this is a failure. Being a lucky dnd 5e feat you normally have 3 luck points. You can easily chose to spend one of your basic luck points to be rolling an additional d20. (PHB, 28) and the Lucky feat specifies:

Halfling divination wizard with the Lucky feat. (Or at least be in a D&D Beyond campaign with someone who's sharing the book with the group.) (UA: Feats for Races) Prerequisite: Halfling Whenever an ally you can see within 30 feet of you rolls a 1 on the d20 for an attack roll, an ability check, or a saving throw, you can use your reaction to let the ally reroll the die. So the Halfling racial trait Lucky (which I'll call Halfling Luck from here on out, to help avoid confusion) states: When you roll a 1 on an attack roll, ability check, or saving throw, you can reroll the die and must use the new roll. I DM for a party of 3-4 people, level 13. Most of the time, they miss on a critical check or attack, and end up wasting 2 or 3 uses of Luck just to land an attack or make a save successfully. The next character I want to play is just what you've described.

Professional computer geek #5 Jun 11, 2020. teo777.

If a player has the Lucky feat and they want to blow all of their daily luck points on a single attack or saving throw I’ll let them do it. Yep. Bountiful Luck Prerequisite: Halfling Your people have extraordinary luck, which you have learned to mystically lend to your companions whenever you see them falter. Whenever you make an attack roll, an ability check, or a saving throw, you can spend one luck point to roll an additional d20. She'll actually start as a knowledge cleric and then immediately multi-class into wizard, and I'll play her as a con-artist who uses divination, illusion, and her natural luckiness to swindle wealthy marks. The ally must use the new roll. But the Lucky feat (PHB, p. 167) says:.

Also affected by some of the feats not being in the core rules, so you have to own a digital copy of the book in order to utilize them on D&D Beyond. Whenever you do make an attack roll, an ability check, or else a saving throw, even you able to spend one luck point for rolling an additional d20. teo777. 3 of them have the Lucky feat, and it's never been a game breaking feature. It may not be RAW or RAI, but it doesn’t matter because they won’t have any luck points left for anything else. Critter Friend (UA: Feats for Races) Prerequisite: Gnome (Forest)