value of pokemon card charizard V 153/172 - Brilliant Stars - Ultra Rare Evolves from Charmeleon Type Charizard G - Reverse Holofoil

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The best thing I can say for it as a designer is look at it, this is what a set looks like when its just one person with no feedback

If you need to counter a planeswalker or another non-creature spell, it's clearly better than Izzet Charm since it only costs one mana, but if your opponent is drawing cards with a Dark Confidant or has so much mana they can easily pay two extra for their spell, it's stuck rotting in your hand

Clearly the 24-land rule isnt a straightforward one-size-fits-all solution, so experiment and see which land counts work for you

And if you play Draft we have a guide for that too MTG Draft Guide Draft Rules, Strategy & Tips to Win