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Professor's Research (Trainer / Promo) This trainer card lets you draw two cards

That is a very strong ability to be able to grant whenever you'd like

While I dont think that its actually the strongest of the cycle, I consider it to be the most generally useful

(Common): The rarity with the highest pull rate for Old Back Pokmon cards

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