Stark Industries

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {U} or {R}.

Subterranean Cavern

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {B} or {G}.

Surveillance Room

When this land enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
{T}: Add {C}.
{1}, {T}: Add one mana of any color.

Training Compound

{T}: Add {C}.
{T}: Add {R} or {G}. Activate only if this land entered this turn or if you control a basic land.

Villainous Hideout

{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast a Villain spell or to activate an ability of a Villain source.
{3}, {T}: Target Villain you control connives. Activate only as a sorcery. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on that creature.)

Plains

Island

Origin of the Avengers

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Scry 2.
II — You may put a Hero creature card with mana value 3 or less from your hand onto the battlefield. If you don't, draw a card.
III — Put a +1/+1 counter on each creature you control.

Marvel Super Heroes