Thundering Mightmare 

Creature — Horse Spirit
Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.) As long as Thundering Mightmare is paired with another creature, each of those creatures has "Whenever an opponent casts a spell, put a +1/+1 counter on this creature."
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Load Deck Studio with Thundering Mightmare, set power and land mix, then decide when to generate.
Prices synced Dec 9, 2025 · 97,665 products cached
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Legality snapshot
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL
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