Exotic Orchard

{T}: Add one mana of any color that a land an opponent controls could produce.

Isolated Chapel

This land enters tapped unless you control a Plains or a Swamp.
{T}: Add {W} or {B}.

Nomad Outpost

This land enters tapped.
{T}: Add {R}, {W}, or {B}.

Celes, Rune Knight

When Celes enters, discard any number of cards, then draw that many cards plus one.
Whenever one or more other creatures you control enter, if one or more of them entered from a graveyard or was cast from a graveyard, put a +1/+1 counter on each creature you control.

Command Tower

{T}: Add one mana of any color in your commander's color identity.

Arcane Signet

Clifftop Retreat

This land enters tapped unless you control a Mountain or a Plains.
{T}: Add {R} or {W}.