Geosurge is still good enough to drop a big finisher (Inferno Titan, Wurmcoil Engine, maybe Balefire Dragon if you want to get cute) on turn 4, but that requires having both the enabler and the big creature in your starting 10 -- and remember that contemporary mono-red doesn't really have filtering or card draw
Theyre strongly related to mana production and creature numbers, and very strong cards like Rofellos, Llanowar Emissary, Leovold, Emissary of Trest, and Priest of Titania, not to mention the support like Gaea's Cradle or Craterhoof Behemoth
This card goes for about $8 according to TCGplayer market averages
Necrogenesis and Night Soil Just 4193 are used even though graveyard abuse is rife in this format

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The most expensive card in OP-13 is Monkey.D.Luffy [Red Manga] OP13-118, valued at around $2,300