Balance Thread

Remember that they also power your other Allying monsters, and said monsters also power the gens. With the gens alone out you're already set-up for Mechazor abilities, and generate the mana to play one every turn.
I'd rather see them at Allying 3 than only costing one mana - at one mana they become splash gens, capable of tripling early mana supply. This would be very very bad in my opinion.

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Scrap Heap either wants to gain only 5-7 attack with the allying, or wants its sac reduced to about 3/2 or less I'd say, just as it's currently much better than Skeletal Bird - and its Allying 1 is such a trivial requirement that it's actually a bonus, as it fuels your other allies.

Mechahawk needs similar treatment - either bring its stats below that of Skeletal Bird, or reduce its stats to be roughly equal and also reduce the sac.

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Nuclear Plant seems pretty powerful as well - its the perfect generator for monsterless/stall or weenies/swarming. I'd reduce the sac to 1/1 just so that everyone doesn't use it over Nova Crystal.

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Okay, I know there's disagreement about the 1/1 mana monsters, but really, look at Crystal Atomaton. It sacs for the same proft as a Magic Orb, and it can be kept to generate as well, and it can deal some early game damage in the first few turns too. Even if nothing else is reduced, bring the sac down to just 1, that way no mana is gained or lost when sacrificed the turn after.

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Spore Flower's ability seems quite a lot more reliable and powerful to me than that of Magmancer, and it even has better stats too, for 2 less mana cost. I'd probably make it a wall - it doesn't quite seem right that a flower can attack over long distances - and that might just do that job (although it count maybe stand to lose 3-6 lifepoints too).

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Anyway, I think this would be the problem with mass balances - there's little focus to change a particular card, and some get skipped over. I mean, if I were reading through a few posts balancing about 40 cards in each of them, with differing opinions and suggestions, I'd be lost. Getting through a decent-sized handful a day will get us there eventually.