The feeling of being told no by a piece of stax-lite, or having a game-altering card played, can often feel pretty tilting, especially given that other players at the table might still be able to pop off through that stax piece, or not care about the undercosted threat
$2.49 Emet-Selch, Unsundered Final Fantasy $2.29 Summon: Leviathan Final Fantasy $1.79 Summon: Primal Odin Final Fantasy $2.29 Aerith Gainsborough Final Fantasy $0.99 Squall, SeeD Mercenary Final Fantasy $0.99 Dion, Bahamut's Dominant Final Fantasy $0.49 Louisoix's Sacrifice Final Fantasy $1.29 Machinist's Arsenal Final Fantasy $0.99 The Masamune Final Fantasy $2.29 Summon: Titan Final Fantasy $2.49 Terra, Magical Adept Final Fantasy $0.59 Clive's Hideaway Final Fantasy 0 results found
410801080 160 KB Unlimited cards from XY9 are very scarce, the SR naturally out of all the Gyarados from the set is the rarest
#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
Also watch out for opponents who assemble the combo but dont immediately try to win