Landfall — Whenever a land you control enters, create a colorless Equipment artifact token named Rock with "Equipped creature has ', , Sacrifice Rock: This creature deals 2 damage to any target'" and equip .
Partner (You can have two commanders if both have partner.)

This land enters tapped.
: Add or .
: Until end of turn, this land becomes a 3/4 green and white Elemental creature with reach. It's still a land.

When Skyship Weatherlight enters, search your library for any number of artifact and/or creature cards, exile them, then shuffle.
, : Choose a card at random that was exiled with Skyship Weatherlight. Put that card into its owner's hand.

(: Add .)

Flying
As Iona enters, choose a color.
Your opponents can't cast spells of the chosen color.

As an additional cost to cast this spell, sacrifice an artifact or creature.
Draw two cards and create a Map token. (It's an artifact with ", , Sacrifice this token: Target creature you control explores. Activate only as a sorcery.")

As an additional cost to cast this spell, sacrifice an artifact or creature.
Draw two cards and create a Map token. (It's an artifact with ", , Sacrifice this token: Target creature you control explores. Activate only as a sorcery.")

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Flying, trample
Whenever this creature mutates, exile cards from the top of your library until you exile a nonland permanent card. Put that card onto the battlefield or into your hand.

Create a token that's a copy of target artifact or creature.
Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

This land enters tapped.
: Add or .
: Until end of turn, this land becomes a 1/4 blue and red Elemental creature with ": Switch this creature's power and toughness until end of turn." It's still a land.

, Sacrifice a creature: Reveal cards from the top of your library until you reveal a creature card. Put that card into your hand and the rest on the bottom of your library in a random order.

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

As The Mimeoplasm enters, you may exile two creature cards from graveyards. If you do, it enters as a copy of one of those cards with a number of additional +1/+1 counters on it equal to the power of the other card.

Spells your opponents cast that target Charix cost more to cast.
: Charix gets +X/-X until end of turn, where X is the number of Islands you control.

Devoid (This card has no color.)
Whenever you cast an Eldrazi spell, you may pay . If you do, copy all spells you control, then copy all other activated and triggered abilities you control. You may choose new targets for the copies. (Mana abilities can't be copied.)

When Tinybones Joins Up enters, any number of target players each discard a card.
Whenever a legendary creature you control enters, any number of target players each mill a card and lose 1 life.

Whenever equipped creature deals combat damage to a player, it connives X, where X is the amount of damage it dealt to that player. (Draw X cards, then discard X cards. Put a +1/+1 counter on that creature for each nonland card discarded this way.)
Equip

Vigilance
When this creature enters, each player chooses an artifact, a creature, an enchantment, and a planeswalker from among the nonland permanents they control, then sacrifices the rest.

This creature has trample as long as you control a Beast, haste as long as you control a Goblin, first strike as long as you control a Soldier, flying as long as you control a Wizard, and ": Regenerate this creature" as long as you control a Zombie.

Visit — Return target creature card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of your next end step.