have you considered Field of Ruin? It seems like it would fit in here, and it would actually be a utility land that becomes a colored land for you after use.

I was also thinking of the fetch two land land cards, but the only one that is modern legal is Blighted Woodland which requires green and is sort of slow anyway (doesn't enable the combo any faster).

nbarry223 interesting suggestion. Might sometimes be more relevant than reliquary tower.

How do you deal withLeyline of Sanctity or similar effects? Very interested in the deck though

RatTail a few ways. We’ve got Laboratory Maniac in the sb, and also with Reliquary Tower we can draw tons of lands to keep the opponent off creatures while doing our own beats. I’ve won many games by Justina swinging with Swans, Fumarole, Bugbear, even Lab Maniac himself.

That makes sense, thanks for clarifying