The Capitoline Triad (Foil Etched) [Assassin's Creed] Rabbit Warrior create a token that's a

create a token that's a copy of target token you control

and The 1 of 1 Ring (Serialized 001 of 001)

Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking

Set: Mystery Booster 2 Type: Land Rarity: Common {T}: Add one mana of any color in your commander's color identity

Some minds are more open than others

The Capitoline Triad (Foil Etched) [Assassin's Creed] Rabbit Warrior create a token that's aSet: Assassin's Creed Type: Legendary Creature God Artificer Rarity: Mythic Cost: {10} Those Who Came Before This spell costs {1} less to cast for each historic card in your graveyard. (Artifacts, legendaries, and Sagas are historic.) Exile any number of historic cards from your graveyard with total mana value 30 or greater: You get an emblem with "Creatures you control have base power and toughness 9 9."