Hammerspace’s a classic. Something as big as a briefcase can just go right into your pockets without you even blinking an eye. Where’d it go? Hammerspace. Takes but a hand wave to retrieve.
https://tvtropes.org/pmwiki/pmwiki.php/Main/Hammerspace
Spend an Action.
You may withdraw an item from your stash, or add an item that is within arm’s reach to your stash. You may only stash targets which are in your possession, grappled, or otherwise controlled by you.
You may store Objects in your stash, each no larger than something which could fit inside a briefcase (15 liters), and you may store up to 3 things at a time.
Using some kind of runic magic that even Athena doesn't quite understand, she became able to turn objects into ink and furthermore, managed to be able to store this ink under her skin in the form of a tattoo. This is often how she gets medical supplies through customs or drugs through inspections.
Spend an Action.
You may withdraw an item from your stash, or add an item that is within arm’s reach to your stash. You may only stash targets which are in your possession, grappled, or otherwise controlled by you.
You may store Objects in your stash, each no larger than something which could fit inside a briefcase (15 liters), and you may store up to 3 things at a time.
He opens the wallet and fits something as large as a briefcase inside, and it just disappears.
Spend a Quick Action.
You may withdraw an item from your stash, or add an item that is within 30 feet of you to your stash. You may only stash targets which are not possessed by someone else, and are freestanding and unattached. You may Exert your Mind to stash items in others' possession with a Committed Action, but they automatically notice that you stole the item.
You may store Objects in your stash, each no larger than something which could fit inside a briefcase (15 liters), and you may store up to 3 things at a time.
You may choose to equip any equipment you withdraw at no additional cost.
With a swipe of the air he can bring up an almost digital menu with a number of square slots showing icons of things he's stored away, allowing him to press the icon and materialize it in his paws.
Spend an Action.
You may withdraw an item from your stash, or add an item that is within arm’s reach to your stash. You may only stash targets which are in your possession, grappled, or otherwise controlled by you.
You may store Objects in your stash, each no larger than something which could fit inside a briefcase (15 liters), and you may store up to 3 things at a time.
The people observing will see an object distort into existence, like the bitch from harry potter.
Spend a Quick Action to activate.
You may withdraw an item from your stash, or add an item that is within arm’s reach to your stash. You may only stash targets which are in your possession, grappled, or otherwise controlled by you.
You may store firearms in your stash, each no larger than something which could fit inside a briefcase (15 liters), and you may store up to 15 of them at a time.
You may choose to equip any equipment you withdraw at no additional cost.
Possession of this Power grants the following Battle Scar: large brand on pectoral region (soft spot).
Possession of this Power grants the following Trauma at all times: you must roll self control to NOT jump in front of a speeding (potentially lethal) object that would potentially hit someone in direct line of fire.
The Dragon Slayer has carved a rune of holding into a small stone and placed it onto a necklace, allowing them to store and withdraw their tools at will.
Spend an Action.
You may withdraw an item from your stash, or add an item that is within arm’s reach to your stash. You may only stash targets which are in your possession, grappled, or otherwise controlled by you.
You may store Objects in your stash, each no larger than something which could fit inside a briefcase (15 liters), and you may store up to 3 things at a time.
The Thief has a stash in which they can store a few objects. It can be accessed through any burlap sack.
Spend a Quick Action. You must actively and obviously use a burlap sack to activate this Effect.
You may withdraw an item from your stash, or add an item that is within arm’s reach to your stash. You may only stash targets which are in your possession, grappled, or otherwise controlled by you.
You may store Objects in your stash, each no larger than something which could fit inside a briefcase (15 liters), and you may store up to 3 things at a time.
You may choose to equip any equipment you withdraw at no additional cost.
The aquamancer has internal reserves of water that they may call upon when needed, and it will gush out of the pores in their skin wherever it is directed.
Spend a Quick Action.
You may withdraw an item from your stash, or add an item that is within arm’s reach to your stash. You may only stash targets which are in your possession, grappled, or otherwise controlled by you.
You may store units of water in your stash, each no larger than something which could fit inside a briefcase (15 liters), and you may store up to 3 things at a time.
You may choose to equip any equipment you withdraw at no additional cost.
The magician waves a handkerchief over an item, and it disappears! They may produce the object later by fluttering a scarf.
Spend a Quick Action. You must actively and obviously use a scarf, sheet, or handkerchief to activate this Effect.
You may withdraw an item from your stash, or add an item that is within arm’s reach to your stash. You may only stash targets which are in your possession, grappled, or otherwise controlled by you.
You may store Objects in your stash, each no larger than something which could fit inside a briefcase (15 liters), and you may store up to 3 things at a time.
You may choose to equip any equipment you withdraw at no additional cost.