Changeling (This card is every creature type.)
Creatures target player controls get -2/-0 and lose all creature types until end of turn.

Return all creatures to their owners' hands. For each opponent who controlled a creature returned this way, you create two 1/1 blue Faerie creature tokens with flying and "This token can block only creatures with flying."

Whenever you gain life, you may pay , where X is less than or equal to the amount of life you gained. If you do, draw X cards.

: Look at the top three cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
At the beginning of each upkeep, if no spells were cast last turn, transform this creature.

Nonartifact spells cost more to cast.

Choose one —
• Destroy all creatures.
• Destroy all artifacts and enchantments.

Devoid (This card has no color.)
Kicker (You may pay an additional as you cast this spell.)
When you cast this spell, search your library for a land card, put it onto the battlefield, then shuffle.
When you cast this spell, if it was kicked, exile target land.

When this land enters, you gain 2 life.
: Add .

When this enchantment enters, each player puts their library into their hand.
Players have no maximum hand size and don't lose the game for drawing from an empty library.
Each player can't cast more than one spell each turn.
When this enchantment leaves the battlefield, each player shuffles their hand and graveyard into their library.

Draw three cards, then put two cards from your hand on top of your library in any order.

(: Add .)

Enchant creature
Enchanted creature gets +2/-2.

Whenever Typhoid Mary attacks, choose one at random. If you discarded a card this turn, you choose one instead.
• Mary — Create a Treasure token.
• Typhoid Mary — Draw a card.
• Bloody Mary — Each opponent loses 2 life and you gain 2 life.

Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

Enchant creature
When this Aura enters, draw a card.
Enchanted creature loses all abilities and is a green Elk creature with base power and toughness 3/3. (It loses all other card types and creature types.)

Whenever you attack, creatures you control with counters on them gain double strike until end of turn.

Create a token that's a copy of target creature you control.
Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

Whenever a Merfolk you control deals combat damage to a player, draw a card.

Target opponent exiles a creature or planeswalker they control with the greatest mana value among creatures and planeswalkers they control.

Whenever Armix attacks, you may discard a card. When you do, target creature defending player controls gets -X/-X until end of turn, where X is the number of artifacts you control plus the number of artifact cards in your graveyard.
Partner (You can have two commanders if both have partner.)