Flare the Dracomander

Flare the Dracomander, costs {u/r} less for each spell that
is both Red & Blue you have cast or copied this turn.
Flash, Haste, Nonebasic landwalk.
Whenever Flare, enters the battlefield, tap all lands &
empty all mana pools.
Nonebasic lands don't untap during their owner's untap
phase.