one piece prb-01 booster box Premium Booster - Booster Box

The Mana Base This deck has ugly mana requirements, and for that well have to play a higher number of dual lands and tri-lands

This platform allows you to sell cards effectively and get a good profit

Regardless of your cube design I think you can safely take it to 20% land count

Or you can turn its downside into an upside by adding to its counters with proliferate cards like Contagion Engine to increase your hand size rather than decrease it, or by running it in a Madness deck as a discard outlet for stuff like Asylum Visitor

This is true even if Protean Hydra has no +1/+1 counters on it at all (and is able to remain on the battlefield because some other effect is boosting its toughness)

Agrias: Lord Dycedarg and the duke would use her as a pawn in their game of thrones