this is a 1st level spell. and not even a good 1st level spell.Exacting Strike (converted old 3e ranger spell)
Level 3
Transmutation
Bonus Action (which you take immediately after hitting a creature with a weapon)
Duration: Instantaneous.
As you hit the target, primal forces pull it deeper. Your hit is now a critical hit.
Isn't not a great spell on its own.this is a 1st level spell. and not even a good 1st level spell.
only useful on some cheese rogue multiclass build where you dip ranger for critting on a sneak attack.
A-tier for level one dip on a rogue main class
D-tier on a ranger
I don't see why that couldn't be a spell.No "real" spell, but ability to burn spell slots for extra attack during your Attack action. So it's different than smites.
IE: burn 1st level slot for 2 extra attacks,
for every slot above 1st, those 2 attacks gain bonus +1d8 damage.
you can use extra usages of HM for this feature.
at 13th level, those 2 attacks gain extra +1d8 damage
at 17th level those 2 attacks are made with advantage
at 20th level those 2 attacks gain +2d6 bonus damage instead of +1d8, this also counts for higher level spell slots used.
there is no bonus damage that could justify spending a 3rd level slot to turn one hit into a crit.Isn't not a great spell on its own.
It's really for rangers who get bonus damage or critical hit rider effects somehow.
But it has to be at least level 3 so others can't easily get access.
to make it more "martial" and to avoid problems with spellcomponents/counterspell/anti-magic areaI don't see why that couldn't be a spell.
burning a 3rd level slot for extra 2 attacks is probably not worth is. that is 15-20 extra damage to the target.Slay the Prey
Level 3
Action:
Make 4 weapon attacks against a single target.
At higher level.
Make 1 addition attack against the target for each spell level above 3.
Stacks nicely with Hunter's Mark which already gives + damage and advantage at level 17. No extra wording required.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.