Roaring Earth gives a +1/+1 counter to one of your creatures every time a land is played on your field
Lightning Bolt would still be one of reds best spells with that restriction, and this card is better
Even Relentless Dead is hard to deal with

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Protection from colored spells makes her nearly impossible to answer cleanly
They're the main players, with some serving as multiplanar Avengers (the Gatewatch), while others want to grow their power and influence across the multiverse