Audacity and a single Might of the Meek are good cards to take out here as all are susceptible to being blanked by one of your opponent's many instant speed removal spells
With this three-booster blister at $39.93, the cost-per pack comes down to $13.31 saving you $6.64 each
Monetary value aside, leave a comment and let us know what your personal chase card is
You would take half with Gisela out, so just a single damage per nonbasic land you are running, while your foes double, so essentially four damage per nonbasic land they control
However, the damage was already done
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