These serve as the de facto currency used in transactions between players when direct card-for-card trade is not possible
For example, if we're facing an opponent with a powerful enchantment on the battlefield, we can use a tutor to search for a card like Disenchant or Return to Dust to deal with it
Provided, of course, that you have that Water Energy to discard for each usage
Breena, the Demagogue The Strixhaven pillow fort commander, Breena, the Demagogue makes your opponents want to hit each other to draw cards
The potential for +4/+0 makes this speedy warrior robust
Though most hand traps aren't actually Trap Cards, they function similarly as an unseen card effect meant to disrupt the opponent's strategy