Probably just upping the cost to 2 life should be fine. Its something that would require further testing, but there is probably some happy medium between mana cost and life payment.
Would 3 life for 2 mana work out a little better?
Mostly because you end up exiling all your lands when you cast it, so anything that cost 5 mana after that point would end up hurting you HORRIBLY.
I mean, that was one of the big reasons I put in the lifelink is to mitigate some of the effects of playing larger spells, but you end up in the negatives for actual spells. It really makes you want to get some creatures in play.
And in case nobody else worked it out yet, it's supposed to be Vasilias's throne.
In other news, I've been working on some other mana fixing artifacts and am sort of wondering what people would feel about this:
Zhiran's Sapphire ArtifactZhiran's Sapphire enters the battlefield tapped.
,
: Add
to your mana pool.
I mean, it's somewhere between the power level of the signets and the diamonds, which are both, apparently, considered a bit on the strong side these days, but I like it.
... why the heck am I the one suggesting most of the solutions for mana fixing? Ruwin's design was absolutely spiff, though I still provided the prompt for it, which he filled wonderfully.