tapping enchantments is a bit weird, but future sight did it (Witch's Mist) and it stops players getting both rituals in the same turn

Only creatures need haste to tap the turn they enter play, so this needs to ETB tapped if you want intended functionality.

zzz why is life so hard

attempted rules text fix

Black doesn't get fast mana under the current color pie. This should be red.

i'm comfortable with my choices in life

If you're intentionally violating the color pie with this set, I accept that. I just wasn't aware that was one of your goals.

lol, fair enough. black could use a way to get around heavy costs (of which there are a few) while still slamming ecocide (red has Flamerite Offering). figured this'd be an interesting test case, and i always liked dark ritual

changed "not on the turn you cast it" rider to "can't use mana made by this thing for its costs" rider

means people can sink 4 unrelated mana into it if they want and get a bunch of activations from a Corpseyard Lurker, Hollowheart Ritualist or Corpsegorger. none of these seem like amazing outcomes though, and Drain Life already exists in the form of Empty. dilemma