This combo seems to have fans pretty excited for Steel-Emerald Disney Lorcana decks, hence the price rise
These unique cards can be cast by exerting a character whose ink cost is the same as the action card, effectively letting you cast it for free
Here is a rough guide to relative pricing: Relative pricing by platform (same card, same grade) Note that convention prices vary widely: some dealers price above eBay (counting on impulse buyers), while others offer genuine discounts, especially on the final day or for multi-card purchases
Whenever you (or another player) put -1/-1 counters on any creature (yours and those of other players), you get a benefit

The Earth - Hex-Sealed Fusion The Hunter with 7 Weapons The Rock Spirit The Tyrant Neptune Tradetoad Tree Otter Treeborn Frog Twin-Barrel Dragon Tyranno Infinity Ultimate Tyranno Unifrog Vampire Baby Vampire Dragon Vampire Duke Vampire Genesis Vampire Grace Vampire Hunter Vampire Koala Vampire Lady Vampire Lord Vampire Orchis Vampire Sorcerer Vampire Vamp Vampire's Curse Water Dragon Windrose the Elemental Lord Zaborg the Thunder Monarch Zombyra the Dark Spell Cards : After the Struggle Ayers Rock Sunrise Bait Doll Bonding - H2O Book of Life Canyon Catapult Zone Convulsion of Nature Cost Down Darkworld Shackles Dark World Dealings Dark World Grimoire Dark World Lightning Des Croaking Demotion Double Snare Double Spell Dragged Down into the Grave Earthquake Ekibyo Drakmord Fossil Dig Gateway to Dark World Grand Convergence Jurassic World Kaiser Colosseum March of the Monarchs Mokey Mokey Smackdown Scroll of Bewitchment Spiritualism The Gates of Dark World Poison Fangs Smoke Grenade of the Thief Tail Swipe The Big Cattle Drive The Big March of Animals Unstable Evolution Vampire Kingdom Veil of Darkness Wild Nature's Release Trap Cards : Beast Soul Swap Blast Held by a Tribute Blind Destruction Bubble Crash Cross Counter Dark Deal Dark Scheme Deal of Phantom Destruction Punch Disappear Drop Off Elemental Burst Escalation of the Monarchs Fatal Abacus Final Fusion Fossil Excavation Froggy Forcefield Fuh-Rin-Ka-Zan Gozen Match Horn of the Phantom Beast Hunting Instinct Imperial Iron Wall Macro Cosmos Miniaturize Mispolymerization Null and Void Ready for Intercepting Release from Stone Riryoku Field Rock Bombardment Sakuretsu Armor Seismic Shockwave Soul Demolition Spell Reclamation Spirit Barrier Survival Instinct Survival of the Fittest The Emperor's Holiday The Forces of Darkness Threatening Roar Trap Reclamation Vampire Takeover Volcanic Eruption Fusion Monsters : D.3.S

Over in Paldea, surprisingly, Floragato and Quaxwell both only have three cards to Crocalor's four