Diminishment by Vincent

You cause a creature or an object you touch to shrink for the duration. Choose either a creature or an object that is neither worn nor carried. If the target is unwilling, it can make a Constitution saving throw. On a success, the spell has no effect.  If the target is a creature, everything it is wearing and carrying changes size with it. Any item dropped by an affected creature returns to normal size at once.

The target's size is halved in all dimensions, and its weight is reduced to one-eighth of normal. This reduction decreases its size by one category--from Medium to Small, for example. Until the spell ends, the target also has disadvantage on Strength checks and Strength saving throws. The target's weapons also shrink to match its new size. While these weapons are reduced, the target's attacks with them deal 1d4 less damage (this can't reduce the damage below 1).

The caster may dismiss the spell at will as a bonus action.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the target is shrunk by another 50% for each slot level above 3rd.

• 4th Level; Size divide by 4 Weight divide by 64
• 5th Level; Size divide by 8, Weight divide by 500
• 6th Level; Size divide by 16, Weight divide by 4000
• 7th Level; Size divide by 32, Weight divide by 32,000
• 8th Level; Size divide by 64, Weight divide by 260,000
• 9th Level; Size divide by 128 Weight divide by 2,000,000

"Vincent quickly shrank to only a few inches tall and then flew away to check on the proceedings"