Mass Healing Word
Up to six creatures of your choice that you can see within range regain Hit Points equal to 2d4 plus your spellcasting ability modifier.
Using a Higher-Level Spell Slot. The healing increases by 1d4 for each spell slot level above 3.
Mass Healing Word 5e 2024 vs. 2014 edition differences
The 2024 version changes the school to abjuration, adds bard as a class, and increases the base healing to 2d4 plus spellcasting ability modifier. The 2014 version's healing is 1d4 + modifier, with higher levels adding 1d4 per slot level above 3rd.