This means that the expected mana you're getting out of Reality Heist is about 2, which will be a pretty low-variance 2, whereas the mana you're getting out of Thoughtcast will be a much higher variance 3ish
Events with oddball rules were nothing new, but the idea for these playtest cards came from Verheys desire to do something that could only come from WOTCs game design team
#23: Barren Glory The ultimate risk it for the biscuit card, Barren Glory combos revolve around having a permanent that exiles it from the battlefield while sticking around itself, like Oblivion Ring or Leonin Relic-Warder
Legality depends on the tournament format -- Reset can be legal in some formats and banned or restricted in others
Once your speed increases, it remains for the rest of the game , regardless of whether the permanent with start your engines remains in play
If a permanent spell is copied, the copies are put onto the battlefield as a token as the spell resolves rather than putting the copy of the spell onto the battlefield