says... Accepted answer #1
For future reference, when you have questions regarding rules, cards, or card interactions, you can use the Rules Q&A section of this site. Unlike the regular forums, you have the option to "Mark as Answer" a button to indicate your question has been resolved and you have no more follow-ups. I have taken the liberty of moving your thread--if you could mark an answer once this matter has been resolved, that would be appreciated.
A card's colour is determined by the mana symbols in its mana cost or its colour indicator (a dot next to its card type, such as Ancestral Vision having a Blue colour indicator). This only looks at the card face that is showing. For example, Archangel Avacyn Flip is mono-White, even though its back face, Avacyn, the Purifier is Red due to a colour indicator.
It That Rides as One , on the other hand, lacks a casting cost and a colour indicator--thus it is a colourless creature. As such, once your Lone Rider Flip transforms into It That Rides as One , it will go from being a White creature receiving the White benefit of Edge of Divinity to being a colourless creature, receiving neither benefit from Edge of Divinity.
February 18, 2019 11:49 a.m. Edited.
February 18, 2019 12:57 p.m.
i though it was white on the first side and black on the other.
February 18, 2019 3:07 p.m.
February 18, 2019 6:48 p.m.
As mentioned, the back side is It That Rides as One , which has no casting cost and no color indicator and is thus colorless. If it was black, there would be a black circle next to "Creature" on the type line. See Avacyn, the Purifier for an example of a color indicator on the reverse (red in this case).
February 18, 2019 6:54 p.m.
yeah i got that it was to see, if it was black on the back side it would activate with out needing to flip him over and if it did the aura would stay on him making it a 8/8. i though the eldrazi symbol on the left corner was an black indicator. it was to see what would be the faster way to flip him without needing to pay for a gain life spell or without the soul sisters on board.
thank again but the question was already answered.