The fact that Darkrider itself is a demon and not a dragon is very relevant as to not taint the Discover pool from Succumb to Madness later in the game. Dark Gift means anything coming from this should be very impactful and 1 mana minions that trigger card draw always find a way to see play. Very good card.

This is going to get triggered a lot in control lists with the addition of Succumb to Madness, Clutch of Corruption & the classic Hydration Station. Probably a lot easier to get insane value than it looks in a vacuum.

I’m going to go out on a limb here and say this could end up being a staple in a dragon-based control warrior setup. I’m seeing this card as a sort of warrior puppet-theater for your own board that could make it really annoying to deal with given it would actually summon the minion after your opponent uses a sweeper. I think it’s either going to be an auto include in any dragon based warrior deck or that archetype won’t exist at all and as a result this won’t see play.