one piece booster box royal blood Japanese OP-10 as usual One Piece Royal Blood Booster

That will always be one by default, but can be scaled up quickly by a few power pumping things: Auras like Rancor that are played

But how exactly do you go about building a mana base in a singleton format where the decks are 100 cards

This card simply does not care about your opponents and their cheap mana rocks, free counterspells, or efficient manual storm lines

It is currently worth $3.99

It transforms into Etching of Kumano, a 2/2 with haste that exiles any creatures killed by a source you control this turn instead of just dying

Myriad Landscape itself comes into play tapped (an effective cost of one sorcery speed mana) and then requires three more mana cost at instant speed to obtain the value from the card