Pointed Discussion

Could work well in an artifact/green deck. But it costs far to much to be resonable as well as cumulative upkeep.

Could be a great control card since green has so many mana producing creatures, but the cost is just too steep. I could see it really hosing someone in the end game, but for 6 you'd like to see something with a bit more oomph.

How would a land enchantment for extra mana i.e.fertile ground be effected, with this in play?

This + eon hub
Fun times

@Guest: Because Eon Hub wouldn't be much easier than that? =P

@Domamir1966: I'm pretty sure that Fertile Ground and other cards like it would still give you colored mana as normal. This is an especially good combo, since there's nothing really telling about those enchantments. Your opponent wouldn't see Ritual of Subdual coming until you dropped it.

Fertile Ground states that the controller adds mana of whatever color not the land. So the land would produce colorless and you'd get one of any color.

I'd put it in an Birthing Pod deck. You don't need colored mana for the activations, and getting the next creature out for helps with paying for the upkeep. Three turns or so of them being unable to play spells will surely win you the game.

An artifact deck with green splash, everflowing chalice, and two proliferate/energy chamber effects could keep this up indefinitely. The benefit over Eon Hub is that the Chalice/Proliferate/Energy Chambers are already amazing by themselves, so you aren't playing cards that are useless outside of a combo in the deck. Add in a few arcbound creatures to ensure you are developing your board in the meantime. My deck also has Prototype Portal, artifact lands, and the urzatron so the lock is pretty easy to maintain if they miss the window.

Power Conduit and Ferropede can keep you going. And, since they're both colorless, you can cast them even after you play the ritual.

Cumulative upkeep was possibly the stupidest mechanic ever designed. On almost every card that has it, I'm like "Hmm this looks like it might be good... oh nevermind it has cumulative upkeep." It's just a pain in the ass.

Except for Herald of Leshrac. That guy's cool.

Tough upkeep cost, but brutal effect. Very easily this is a one card lockdown, efficiently silencing opponents while its in play.

I run this in my monogreen ramp Eldrazi deck. Late game, I can play this, then drop an Eldrazi or two and still have enough mana left over to keep this live for a few turns. Sure, I might not be able to cast green spells, but when I have an Eye of Ugin out searching out my Eldrazi, I don't care too much. This has the potential to be good, if you can pay for it.

You don't need Eon Hub with this. Fast mana accel with a Mana Flare and artifact mana. If you run instant burn, you can burn them using Volcanic Geyser at the beginning of your upkeep with the Ritual of Subdual still in play. Even with the amount of artifact mana available, many players still don't use them meaning you can lock them out of being able to cast anything early in the game, and with the Mana Flares keep the Ritual of Subdual in play for an extended amount of time while using red sweepers to kill their creatures and shatters/naturalizes to kill artifact mana producers. The deck does work as I built the deck a long time ago running Fire Diamonds and Moss Diamonds with sweepers. The only decks that gave me problems were decks that had pro-Red creatures, counter decks, and fast aggro decks that killed me before I could drop a Glacial Chasm. I won one game against a white deck that was holding Eye for an Eye that couldn't be cast because I cast Volcanic Geyser for lethal in response to the upkeep trigger of the Ritual.

A current build is G/W with Cloudposts, Glimmerposts, and Vesuva's + artifact mana for a mana base. It's pretty effective, for the most part. Still looking to throw it into a FFA sometime for giggles.

The spell costs what it costs because it can lock an opponent down hard.

@boneclub: I simply stated it wasn't necessary, and it actually isn't necessarily easier to run an Eon Hub, either. Especially when you consider it's harder to play after the Ritual is in play, is about as slow to play as the Ritual (about the time you can cast the Eon Hub you either want to be playing the Ritual itself or wiping the board) and is trumped by a 2 casting cost artifact the Power Conduit which can be played on turn 2 or after the Ritual has been in play for a turn or two easily. If all you're interested in is dealing with the upkeep for the Ritual there are much better options than the Eon Hub. It is a good card in it's own right; however, the deck needs to be built to take advantage of it instead of put into a deck where another card is more effective.