Julius Jumblemorph Elspeth's Devotee Elspeth, Undaunted Hero Ethereal Elk Fang-Druid Summoner Finale of Devastation Garruk's Warsteed Gideon's Battle Cry Gideon's Resolve Goldmane Griffin Grand Master of Flowers Grasping Current Invasion of Ikoria Jace's Ruse Liberating Combustion Liliana's Influence Liliana's Scorn Niambi, Faithful Healer Oko's Hospitality Ral's Dispersal Raven Clan War-Axe Rhythmic Water Vortex Rowan's Stalwarts Runeforge Champion Sanctum of All Sorin's Guide Sun-Blessed Mount Tale of Momo Teferi's Wavecaster Tezzeret's Betrayal The First Doctor The Five Doctors The Hunger Tide Rises Tower Winder Visage of Bolas Vision Quest Vraska's Scorn Vraska's Stoneglare Yanling's Harbinger
Those were the 10 most expensive and valuable cards in Pokmon TCG Temporal Forces, the newest set in the Scarlet and Violet era
This method is useful for showcasing the rarest ones
#6: Red Elemental Blast/Pyroblast Speaking of the best sideboard cards of all-time, Red Elemental Blast and its nearly identical analog, Pyroblast, are extremely high on the all-time list, thanks to whole Counterspell + Maelstrom Pulse for one-mana thing, and in a color that doesnt get access to such things but greatly appreciates them
The Luminous Sign ability notes that when Lumineon V is played from the hand to the Bench, the player may search their deck for a Supporter, reveal it, then add it to their hand and shuffle their deck
And if your opponent activates any monster effects, you can have Apollousa lose 800 attack to negate that activation