As Belbe's Portal enters, choose a creature type.

, : You may put a creature card of the chosen type from your hand onto the battlefield.

Whenever Durnan attacks, look at the top four cards of your library. You may exile a creature card from among them. Put the rest on the bottom of your library in any order. For as long as that card remains exiled, you may cast it. That spell has undaunted. (It costs ​ less to cast for each opponent.)

Choose a Background (You can have a Background as a second commander.)

Exile target creature you control, then return that card to the battlefield under its owner's control. It gains first strike until end of turn.

, : Search your library for a card, put that card into your hand, then shuffle.

Flash

When Portal Manipulator enters during the declare attackers step, choose target player and any number of target attacking creatures their opponents control. Those creatures are now attacking that player.

When Portal to Phyrexia enters, each opponent sacrifices three creatures of their choice.

At the beginning of your upkeep, put target creature card from a graveyard onto the battlefield under your control. It's a Phyrexian in addition to its other types.

Imprint — When Prototype Portal enters, you may exile an artifact card from your hand.

, : Create a token that's a copy of the exiled card. X is the mana value of that card.

Exile target creature you control, then return it to the battlefield under its owner's control. If that creature is a Bird, Frog, Otter, or Rat, draw a card.

Thran Portal enters tapped unless you control two or fewer other lands.

As Thran Portal enters, choose a basic land type.

Thran Portal is the chosen type in addition to its other types.

Mana abilities of Thran Portal cost an additional 1 life to activate.