Lorwyn Eclipsed Commander (ECC) and Special Guests (SPG) are Commander-, Legacy-, and Vintage-legal sets, and individual cards are also legal where already available in other formats
Ancestral Recall Tons of players acknowledge Ancestral Recall as one of, if not the most efficient, card-draw spells and one of the best blue cards MTG has ever graced us with
Use Masquerade to send Emerald bird for another body so that you can make S:P, then fuse into the second Liger with Wolf
After you finish preparing your Deck, please notify a judge that you have completed Side Decking and are ready to start your next Duel
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Serra's Sanctum, for example, has a similar effect to Sanctum Weaver, but for nearly no cost