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SoF is the largest offender right now, so I think it needs the greatest attention.
Most shards could use a small nerfing. Some much more than others *cough* SoF *cough* ... Though I actually like having SoF as a creature. The 2 round initial delay would definitely help that...
My ideas would be to
-keep it as a 0|1 that grows by 10 hp per use and do one of the following:
1) Have the ability delay it for 2 turns after each use and transform to black hole at hp>32...
2) have the ability get removed after its hp exceed 32
3) have the ability change after hp exceed 32 -> still give +hp (with diminishing returns would be good) but remove permanent destruction
4) remove permanent destruction after first use but keep hp gain (e.g. the first time the player targets a permanent to destroy, the ability is changed to a +hp only)
My thoughts on the other shards:
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For SoSe, only allow upped to give a single upped card with the other 2 unupped (there should be a good benefit for upping the card).
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make it +3|+0 instead of +4|+0 sounds good to me.
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lowering the percentages for dodge and critical seems good. I agree that current version may be a little high... would have to look at a detailed analysis to know what to set the values at though.
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actually a buff not a nerf here, but then, this one seems to need that so looks good to me.
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interesting idea. Would certainly make it less situational... but shards are supposed to be slightly better for a specific element... how is this helping out
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over others?
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could work, but it doesn't really seem to give any extra edge to its element so I don't see how its better than current version in that respect
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I agree. Its good as is
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might be tricky to make this work with current stacking mechanic... extra pc resist is an interesting twist though
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smaller bump but smaller cost as well... sounds alright
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should work alright (though I am biased since I've been saying that for a while... there's a whole discussion on this in the nerf this card section though, so you may have opposition here)
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... I guess a time limit could work out, but I don't think its really necessary. This card seems balanced already why nerf it just for the sake of nerfing?