Portal

Fire Tempest deals 6 damage to each creature and each player.

Forked Lightning deals 4 damage divided as you choose among one, two, or three target creatures.

If an opponent controls more lands than you, search your library for up to three Plains cards, reveal them, and put them into your hand. Then shuff...

Cast this spell only during the declare attackers step and only if you've been attacked this step. This turn, whenever an attacking creature deals ...

Hurricane deals X damage to each creature with flying and each player.

{T}: Destroy target tapped creature. Activate this ability only during your turn, before attackers are declared.

Take an extra turn after this one. At the beginning of that turn's end step, you lose the game.

When Mercenary Knight enters the battlefield, sacrifice it unless you discard a creature card.

As an additional cost to cast this spell, sacrifice a green creature. Search your library for a green creature card and put it onto the battlefield...

Green creatures you control gain forestwalk until end of turn. (They can't be blocked as long as defending player controls a Forest.)

Phantom Warrior can't be blocked.

When Pillaging Horde enters the battlefield, sacrifice it unless you discard a card at random.

When Primeval Force enters the battlefield, sacrifice it unless you sacrifice three Forests.

Each player draws X cards.

Pyroclasm deals 2 damage to each creature.

When Serpent Assassin enters the battlefield, you may destroy target nonblack creature.

When Spiritual Guardian enters the battlefield, you gain 4 life.

{T}: Target creature gets +2/+2 until end of turn. Activate this ability only during your turn, before attackers are declared.

You may play up to three additional lands this turn.

Search your library for a creature card and reveal that card. Shuffle your library, then put the card on top of it.

During target player's next turn, creatures that player controls attack you if able.

Each player may draw up to two cards. For each card less than two a player draws this way, that player gains 2 life.

Whenever Thing from the Deep attacks, sacrifice it unless you sacrifice an Island.

When Thundering Wurm enters the battlefield, sacrifice it unless you discard a land card.