The catch in this situation is that your opponents each get a card and a Rabbit too, which is hardly ideal

Table of Contents show The Deck Grim Guardian | Illustration by Ryan Barger Commander (1) Planeswalkers (1) Creatures (29) Avacyn's Pilgrim Fyndhorn Elves Viscera Seer Aegis of the Gods Blood Artist Cruel Celebrant Destiny Spinner Devoted Druid Sakura-Tribe Elder Sanctum Weaver Starfield Mystic Eidolon of Countless Battles Eternal Witness Grim Guardian Grim Haruspex Katilda, Dawnhart Martyr Agent of Erebos Ajani's Chosen Archon of Sun's Grace Eidolon of Blossoms Falkenrath Noble Gisa, Glorious Resurrector Windborn Muse Cinderhaze Wretch Fountain Watch Karametra, God of Harvests Sporemound Syr Konrad, the Grim Butcher of Malakir Sorceries (12) Profane Tutor Bone Shards Bone Splinters Exsanguinate Sign in Blood Cultivate Kodama's Reach Read the Bones Ancient Craving Diabolic Tutor Duneblast Eerie Ultimatum Instants (7) Reclaim Altar's Reap Heliod's Intervention Abzan Charm Krosan Grip Second Harvest Shared Summons Artifacts (4) Sol Ring Swiftfoot Boots Ashnod's Altar Bolas's Citadel Enchantments (11) Ethereal Armor All That Glitters Sterling Grove Dark Prophecy Anointed Procession Greed Life and Limb Parallel Lives Privileged Position Sphere of Safety Starfield of Nyx Lands (35) Blossoming Sands Command Tower Evolving Wilds Exotic Orchard Forest x10 Golgari Rot Farm Jungle Hollow Myriad Landscape Orzhov Basilica Plains x6 Sandsteppe Citadel Scoured Barrens Selesnya Sanctuary Swamp x7 Terramorphic Expanse This deck is very creature heavy

It searches Ra and grants an additional Tribute Summon, plus it can banish itself to grant Ra the ATK/DEF of its Tributes
In tournament play, where a round is decided by a best-two-out-of-three, you can also bring a separate Side Deck of up to 15 cards to swap in between duels to adapt to your opponents specific deck
Generally, this will be much less efficient, but is completely viable if you wish to build your deck in this direction
Yes, you heard it right