It definitely is quite flavourful, and the effect has the Dark Maze attack exactly once (Walls can't attack, remember) before being exiled from the game entirely, representing the shadows fading away
1 Rakdos, Patron Of Chaos (Showcase) (Invisible Ink) Foil Value - $52.46 A devilishly pushed Demon, Rakdos, Patron of Chaos is pure power on the battlefield
If Bound ripples, and you find another copy of Bound and Determined, you cant use that trigger to cast the Determined side because its considered to have a different name than the spell you cast
These two cards are commonly found together in Pioneer decks as a result
The Plot mechanic alluded to on the card Fblthp, Lost on the Range works like foretell, but you cast plotted cards without paying their mana costs at a later turn rather than for an alternative cost