Wondrous Item, very rare
This belt has 1 charge. While worn the wearer can spend the charge to cast the Haste spell as an action targeting only themselves. While cast in this manner this spell does not require Concentration. The spell ends early if the belt is removed. The spent charge recovers at the next dawn.
Notes: Buff, Belt
I Personally Think That The Belt of Haste Should Require Attunement But That's Just My Opinion
Apart From That I Think That This Item Is Really Cool
Thank you for the feedback. I wanted this to not require attunement so it could be a benefit in addition to other attuned items. This is why it's "Very Rare".
Maybe make a less rare version that does require attunement
or make it give you an extra attunement slot
although just making it so that you can't pass it around the entire party because that would be kind of broken from a game balancing point of view
Perhaps it's just my bias but I can't see how this would be broken? Does it matter who uses it - it's still only once per day. People can unattune and attune as much as they want anyway so if they wanted to pass it around they can even with attunement. The lack of attunement makes that easier, but it still has one use in total in a day, regardless of who uses that charge. It's not one charge per person, it's one charge per day. I don't see why this would be broken. Can you clarify, please?
The other thing Attunement does is limit how many other things you can benefit from at the same time. Maybe if you make it so that the PC has to succeed at a Con check (or something) every turn to keep the Haste up. Something to limit it in some way. Otherwise it’s a permanent Potion of Speed. Imagine a Potion of Speed that refilled itself each day at Dawn. That would be, like, an Artifact.
I had not thought of that