As long as Archelos, Lagoon Mystic is tapped, other permanents enter the battlefield tapped.

As long as Archelos is untapped, other permanents enter the battlefield untapped.

Alliance — Whenever one or more other creatures enter the battlefield under your control, seek a land card, then put it onto the battlefield tapped. This ability triggers only once each turn.

Roll a d20.

1–9 | Tap all creatures your opponents control.

10–19 | Tap all creatures your opponents control. Those creatures don't untap during their controllers' next untap steps.

20 | Tap all creatures your opponents control. Those creatures don't untap during their controllers' next untap steps. Until your next turn, creatures your opponents control enter the battlefield tapped.

Artifacts, creatures, and lands your opponents control enter the battlefield tapped.

Creatures your opponents control enter the battlefield tapped.

Artifacts, creatures, and lands your opponents control enter the battlefield tapped.

You may have Mariposa Military Base enter the battlefield tapped. If you do, you get two rad counters.

: Add .

, : Draw a card. This ability costs less to activate for each rad counter you have.

Each player can't cast more than one non-Phyrexian spell each turn.

Non-Phyrexian creatures enter the battlefield tapped.

Flying, vigilance

Snow lands your opponents control enter the battlefield tapped.

Noncreature spells your opponents cast with mana value 4 or greater cost more to cast.

First strike, deathtouch

You may play an additional land on each of your turns.

Creatures and nonbasic lands your opponents control enter the battlefield tapped.

Whenever Thalia and The Gitrog Monster attacks, sacrifice a creature or land, then draw a card.

Creatures played by your opponents enter the battlefield tapped.