Only the names. I came up with playtest names based on either two characters played by the same actor or characters and their actors (because "You think they're the same person? Have you ever seen them together in the same room?" is a joke MDFCs really invite IMO), but the mechanics are not tied to that reference except tenuously (e. g. Hermione being a Wizard).

I wouldn't know why Hermione Granger would have artifact-related abilities or Emma Watson would sacrifice permanents to draw cards. :D

Are you just using the names, or is this intended to represent the Hermione from Harry Potter?

Forty-card cycle of two-color MDFC w/o partner. ;)

Yeah, the Fifth Edition rules say one thing, the current rules say another thing, but clearly at some point the rules must have been even different, so why can't I change it back to that? Because you don't have the necessary reference material?

Obviously the current rules say lifelink is a static ability, though it used to be a triggered ability. Things change.

Oh, yeah, Trigon of Corruption etc. are a thing. That's how I arrived at that alternate spelling...

I originally wanted this to be an uncommon, but then got really stuck on the theme of threes and hoped it would be acceptable at rare.

I guess, I could go all the way to three colors...

First seen at MtGNexus

...

The promo version of this card should be triangular.

But this is really cheap. A 3/3 flier for 3 (albeit gold) - and what is functionally regenerate (except better because it triggers ltb and etb)?

I think you mean "trygon." "Trigon" makes me think of an artifact that can make three copies of itself

...