Aetherflux Car{2}Artifact — VehicleFlying
Whenever you cast a spell, put charge counters equal to four times that spell's mana value on this Vehicle.
Remove 121 charge counters from this Vehicle: Take an extra turn after this one.
Crew 1 3/2 Htbr, Racetrack Referee{1}{W}Legendary Creature — HomunculusPlayers can't cast spells by paying alternative costs or without paying their mana costs. (Additional costs are still okay. Anything that replaces the mana cost like flashback or madness is not.) 2/2