Downcasting - doombubbles/DoombubblesTweaks GitHub Wiki
Many spells now have "cantrip versions" in the way that Create Water used to (and now does again). That is, a weaker version of a spell that is "downcasted" to the power of a cantrip, costing no spell slots. Each one become available once you're first capable of upcasting the spell.
Magic Missile - Shoots 1/2/3 missiles that deal 1d4 damage.
Bless - Targets 1 ally.
Bane - Targets 1 enemy.
Guiding Bolt - Deals 1d6/2d6/3d6 damage on hit.
Witch Bolt - Deals 1d10/2d10/3d10 damage; can't be recast.
Ray of Sickness - Deals 1d4/2d4/3d4 damage (none on save).
Thunder Wave - Deals 1d4/2d4/3d4 damage (none on save).
Burning Hands - Deals 1d8/2d8/3d8 damage (none on save).
Ice Knife - Deals 1d4 piercing damage to target and 1d4/2d4/3d4 cold damage AOE (none on save).
Inflict Wounds - Deals 1d10/2d10/3d10 damage on hit.
Arms of Hadar - Deals 1d6/2d6/3d6 damage (none on save).
Dissonant Whispers - Deals 1d4/2d4/3d5 damage (none on save).
Chromatic Orb - Deals 1d8/2d8/3d8 damage on hit but doesn't create surfaces.
Scorching Rays - Shoots 1/2/3 rays that deal 2d4 damage on hit.
Melf's Acid Arrow - Deals 1d4/2d4/3d4 damage (half on save), and 1d4 next turn on hit.
Shatter - Deals 1d6/2d6/3d6 damage (none on save).