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That said, you can access 7 of your 15 cards in your sideboard in best-of-one matches using special cards like Invasion of Arcavios, Fae of Wishes through the Granted mode to look for cards outside the game cards in your sideboard are considered to be outside of the game and similar with special mechanics like lesson and learn from Strixhaven

Verte's own restriction prevents me from fusioning using the other Dragons' effects

has strong attribute-based battle protection: it cant be destroyed by battle with DARK, EARTH, WATER, FIRE, or WIND monsters

Furthermore, Blazemire Verge could improve the mana base, helping to cast Cauldron Familiar on turn one and tapping for red later