Seeing the shift in color of several classic cards in the Planar Chaos, got me thinking about how far it could be taken, Giant Growth became red, Healing Salve became Green. Could there be a way to work with a shifted version of Lighting Bolt or Dark Ritual, I have a feeling that Brainstorm is as close as anyone could come to replicating Ancestral Recall. So this is the variant I came up will for a Ritual effect.
I added the effect from path to exile allowing for a land search to offset using multiples.
Holy Ritual
Instant

Add

to your mana pool, each opponent may search their library for a basic land and put it into play tapped.
I feel like giving your opponent a land will stop players from hard casting one ritual off another. It would give white some power that the current field is lacking.
Im sure that it borders on busted but I thought I would share it and get some feedback.