Grow Extra Arms

Strategy & Gameplay

Grow Extra Arms is a dynamic green instant from the SPM set that offers impressive offensive potential for creature-focused strategies across numerous formats. This spell provides a substantial +4/+4 boost to target creature until end of turn, making it an excellent tool for pushing through damage in combat or enabling surprise victories. What truly sets this card apart is its Spider synergy clause, which reduces the casting cost to just one generic mana when targeting a Spider creature, transforming it from a solid combat trick into an incredibly efficient pump spell. This cost reduction opens up compelling deckbuilding possibilities in any format where viable Spider archetypes exist, particularly in limited environments where Spiders tend to cluster and in constructed formats like Pioneer and Modern that have developed Spider-themed strategies over the years. The card fits naturally into any aggressive green deck that can support its two-mana baseline cost, serving as a combat trick that can turn chump blockers into lethal threats or push through final damage. In Commander and Brawl formats, it slots seamlessly into Spider-focused decks, creature-heavy strategies, or any green deck that values instant-speed combat tricks. With legality spanning Standard through Legacy and virtually every other major format, this versatile instant appeals to players at all competitive levels and casual enthusiasts alike. Whether you're building a dedicated Spider deck or simply want efficient green pump spells for your aggressive strategies, Grow Extra Arms delivers the mana efficiency and power boost necessary to close out games decisively.