Well... Mythic. Power level concerns aside, I think Mythics should do what the controller of the mythic would want and assume it did, not what makes its opponent comfortable. That being said, this card would be incredibly good even if it was just a 2/6. It's one of those abilities that don't look too special until it happens. Then, Blammo!
Hmm. There is precedent for this effect: Magewright's Stone. This is obviously a lot more expensive, but it's a) repeatable and b) doesn't take up a deck slot. So I guess the cost seems about right (although perhaps or would be more natural than ).
"As an additional cost to cast ~, sacrifice a creature.
Distribute X +1/+1 counters among any number of target creatures, where X is the sacrificed creature's toughness.
Whenever a land card is put into your graveyard, you may shuffle ~ into your library. OR Whenever a land you control is put into a graveyard from the battlefield, you may shuffle ~ into your library."
In the first case, the last ability triggers no matter where the land comes from. In the second, it only triggers when one of your lands dies.
Well... Mythic. Power level concerns aside, I think Mythics should do what the controller of the mythic would want and assume it did, not what makes its opponent comfortable. That being said, this card would be incredibly good even if it was just a 2/6. It's one of those abilities that don't look too special until it happens. Then, Blammo!
Oh man, this guy is mean! I would feel better if he triggered only on damage to players, or maybe did non-land permanents.
Guh - quad boomerang? Evil!
Name Hesitation is taken.
All creatures get -2/-0? Good old Marsh Gas. If you can smell it, it's too late.
Heh. Fair enough then.
Truth was I didn't know what to do for the ub land in the cycle.
Hmm. There is precedent for this effect: Magewright's Stone. This is obviously a lot more expensive, but it's a) repeatable and b) doesn't take up a deck slot. So I guess the cost seems about right (although perhaps
or 
would be more natural than 
).
Thank you.
Also replace "shuffle ~" with "shuffle ~ from your graveyard", because otherwise it's not clear whether it applies from the stack or the graveyard.
"As an additional cost to cast ~, sacrifice a creature.
Distribute X +1/+1 counters among any number of target creatures, where X is the sacrificed creature's toughness.
Whenever a land card is put into your graveyard, you may shuffle ~ into your library. OR Whenever a land you control is put into a graveyard from the battlefield, you may shuffle ~ into your library."
In the first case, the last ability triggers no matter where the land comes from. In the second, it only triggers when one of your lands dies.
Nice. That's one way of dealing with them.