black and white plasma freeze booster box B&W EX ready to do battle Black & White: Plasma Freeze

While this resource restoration comes with the strict penalty of not being able to play any more character cards for the rest of the turn, it provides the perfect reservoir of active mana to fuel high-cost counter events and stage cards

If you want this type of sleeve material and ease of inserting / removing cards, Ultra Pro also produces Premium Soft Sleeves which are the same thing but slightly smaller (though still leaving plenty of room)

Clive's Hideaway, therefore, will find its way into legends matter decks

Growing this with noncreature spells is quite doable, and there are a few draw 2 effects in the format too that will trigger it

Siren's Ruse can double up on a strong enters trigger