surging sparks booster box cards Scarlet & Violet: it lights up the shoreline Pokémon TCG: Scarlet & Violet-Surging

It obliterates pretty much any creature strategy

Diabolic Tutor Diabolic Tutor | Illustration by Greg Staples I dont think Greg Stapless Diabolic Tutor would make everyone's list, but the expression on the face is messed up

Windreaper Falcon Rarity: Uncommon TYPE: Creature SUBTYPE: Bird CMC: 3 Mana cost: USD: $0.22 EUR: 0.19 TIX: 0.04 EDHREC RANK: 30930 (1/1) Flying, protection from blue Withering Boon Rarity: Uncommon TYPE: Instant SUBTYPE: - CMC: 2 Mana cost: USD: $16.06 EUR: 6.24 TIX: 0.58 EDHREC RANK: 5205 As an additional cost to cast this spell, pay 3 life

In your hand, library, or graveyard they have the casting cost of both sides, but on the field they have the mana value of their unlocked doors

Keeper of the Accord can help fix that by finding lands and making creatures to help you catch up