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That being said, as far as midrange decks go, Amber/Sapphire is incredibly reliable, and likely to be seeing a lot of play as the current meta progresses.

So, to accelerate your game to ramp up that mana, these lands are going to be solid

Sir Hiss could be an excellent option to include as a way to counter pesky opposing Evasives

Its essentially a full Aristocrats deck in one, being a sacrifice outlet and a payoff in itself

With their special abilities, they keep the town safe and happy, and now, with Lorcana's Amber/Amethyst starter deck for Ursula's Return, they can also help you gather all the lore you need

However Then youd be limiting its growth