The three main counters are the Artifact Engine (3 Artifact Sanctum, 1-2 Artifact Lancea, 1-2 Artifact Scythe), Solemn Scolding, and Mind Crush
Cyrus pairs wonderfully with Weavile EX, a card that dishes out 70 DMG (40+30) at only 1 Energy if the opponent has damage on it
While the obvious first home for Urza's Cave is Tron decks as a failsafe for games where it's difficult to assemble the three Urza lands necessary for the strategy's explosive mana acceleration , it's also interesting to consider what else Urza's Cave can do in decks featuring Knight of the Reliquary, Elvish Reclaimer, and the Modern Horizons 3 reprint Sylvan Safekeeper
UR Ultra Rare UL Ultimate Rare Lost Blue Breaker X WATER Level 3 [ Sea SerpentEffect ] ATK 1400 DEF 0 If there is another face-up Fish, Sea Serpent, or Aqua monster on the field: You can Tribute this card, then target 1 Spell/Trap on the field
Rare #205 Price TBA Arrives 512 Sep 2026 set releases 2026-08-14 Wishlist The Lonely Mountain Rare #207 Price TBA Arrives 512 Sep 2026 set releases 2026-08-14 Wishlist The Queen of Dale Mythic #253 Price TBA Arrives 512 Sep 2026 set releases 2026-08-14 Wishlist Bilbo, Luckwearer // Burglar's Plot Uncommon #254 Price TBA Arrives 512 Sep 2026 set releases 2026-08-14 Wishlist Desolation of Smaug Rare #262 Price TBA Arrives 512 Sep 2026 set releases 2026-08-14 Wishlist
Normally, these kinds of massive price spikes get triggered by newly discovered mechanical interactions after the launch of a new set