Aether Hub

Blooming Marsh

Blossoming Defense

Verdurous Gearhulk

Aethersphere Harvester

Fatal Push

Glint-Sleeve Siphoner

Rishkar, Peema Renegade

Walking Ballista

Winding Constrictor

Hashep Oasis

Ifnir Deadlands

Vraska's Contempt

2BB

Vraska, Relic Seeker

4BG

Deadeye Tracker

B

Merfolk Branchwalker

1G

Wildgrowth Walker

1G

Jadelight Ranger

When Jadelight Ranger enters the battlefield, it explores, then it explores again. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard. Then repeat this process.)

Foul Orchard

Foul Orchard enters the battlefield tapped. {T}: Add {B} or {G}.

Evolving Wilds

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle your library.

Swamp

({T}: Add {B}.)

Forest

({T}: Add {G}.)