Inspired by this video:

Here's what I think each of the Miraculous shown in Miraculous Ladybug would do upon landing a random crit!

Ladybug:Summons 7 items instead of one,and the solution is more straightforward and easy to pull off.

Cat:Does approximately twice the amount of damage.

Butterfly:Same effects as a Megakuma,but it also Akumatized those around in a certain radius.

Turtle:Creates a larger shield that destroys everything that tries to damage it.

Fox:Creates more complex illusions,and these don't appear when touched.

Bee:Paralyzes those around the victim in an aura besides those on the side of Bee Miraculous Holder.

Peacock:Creates 2 Senti-Monster's instead of 1,and they both derive from thr same emotion,but have different powers.

Mouse:Able to use ability without shrinking in size.

Ox:Grants invincibility to those in a certain radius whenever the ability is used.

Tiger:Doubles Damage and Knockback.

Rabbit:The Burrow becomes larger,with access points into other universes.

Dragon:Summons more of the desired element.

Snake:Sends the user back to any desired time when they used Second Chance.

Horse:The Portals gain a vortex like affect,sucking in nearby items. Multiple portals also can be summoned at once.

Goat:Summons a better/more efficient version of the item requested.

Dog:Retrieves any item that the ball had touched that the user desires.

Rooster:Grants others in a certain radius the requested power.

Monkey:Disables the powers for longer and makes them actively harmful to their user if they attempt to use their power.

Pig:Shows the most deep desire of the Person,often the deepest good desire.