You alter time around up to six creatures of your choice in a 40-foot cube within range. Each target must succeed on a Wisdom saving throw or be affected by this spell for the duration.
An affected target's speed is halved, it takes a −2 penalty to AC and Dexterity saving throws, and it can't use reactions. On its turn, it can use either an action or a bonus action, not both. Regardless of the creature's abilities or magic items, it can't make more than one melee or ranged attack during its turn.
If the creature attempts to cast a spell with a casting time of 1 action, roll a d20. On an 11 or higher, the spell doesn't take effect until the creature's next turn, and the creature must use its action on that turn to complete the spell. If it can't, the spell is wasted.
A creature affected by this spell makes another Wisdom saving throw at the end of each of its turns. On a successful save, the effect ends for it.
* - (a drop of molasses)
What is the initial save of this spell
@Skudmora1: It would depend on the caster. The spell Slow can be cast by both Wizards and Sorcerers. According to the Basic Rules, (which I heavily recommend reading before building your character,) these two classes use different Abilities when casting spells which affects the DC, but not what Ability (in this case Wisdom) is used when rolling for the Save.
The Spellcasting Ability of Wizards is Intelligence whereas Sorcerers use Charisma. Unless specified otherwise, the Save for your spells is the following:
Spell Save DC = 8 + your proficiency bonus + your [Spellcasting Ability] modifier
Be sure read the rules and understand them before getting into character creation. If you need answers to any questions, I recommend turning to the RPG Reddit or Stackexchange for more immediate answers.
Would a creature falling that has Slow cast onto them be falling at regular speed or would it's fall be slow as well?