During your turn, as long as Cloud is equipped, it has double strike and indestructible. (This creature deals both first-strike and regular combat damage. Damage and effects that say "destroy" don't destroy this creature.)
Equip abilities you activate that target Cloud cost less to activate.

This land enters tapped unless you have two or more opponents.
: Add or .

Whenever Rhys attacks, you gain 1 life for each Elf you control.
, Sacrifice an Elf: Regenerate Rhys.

Each other creature you control enters with a number of additional +1/+1 counters on it equal to Arwen's toughness.

At the beginning of your upkeep, if you control three or more artifacts, you gain 1 life.
: Add .
, , Sacrifice Inventors' Fair: Search your library for an artifact card, reveal it, put it into your hand, then shuffle. Activate only if you control three or more artifacts.

First strike, haste
Symphony of Pain — Whenever you cast a spell from anywhere other than your hand, this creature deals damage equal to that spell's mana value to target opponent.

Menace
When Massacre Girl enters, each other creature gets -1/-1 until end of turn. Whenever a creature dies this turn, each creature other than Massacre Girl gets -1/-1 until end of turn.

This land enters tapped unless you control a Mountain or a Forest.
: Add .
, : The next spell you cast this turn can't be countered.

You may have Sakashima enter as a copy of another creature you control, except it has Sakashima's other abilities.
The "legend rule" doesn't apply to permanents you control.
Partner (You can have two commanders if both have partner.)

At the beginning of your upkeep, if an opponent controls more lands than you, you may search your library for up to three basic land cards, reveal them, put them into your hand, then shuffle.

Haste
Shadow (This creature can block or be blocked by only creatures with shadow.)
Whenever another creature is put into your graveyard from the battlefield, you may pay . If you do, return this card from your graveyard to the battlefield.

Whenever you cast a spell from anywhere other than your hand, Nico Minoru deals 2 damage to each opponent.
, , Discard a card: Exile cards from the top of your library until you exile a nonland card. You may cast that card without paying its mana cost.

This land enters tapped unless you have two or more opponents.
: Add or .

This spell costs less to cast for each creature that died this turn.
Discard your hand, then draw eight cards. Blood for the Blood God! deals 8 damage to each opponent. Exile Blood for the Blood God!

Exile target creature. Its controller gains life equal to its power.

: Add two mana in any combination of , , and/or .
, : Draw two cards, then discard a card.

Artifact creatures you control have afflict 3. (Whenever a creature with afflict 3 becomes blocked, defending player loses 3 life.)

All creatures have haste.

You may look at the top card of your library any time.
You may cast creature spells from the top of your library.
, , Tap two untapped creatures you control: Reveal a card from your hand or the top card of your library. If you reveal a creature card this way, put it onto the battlefield. Activate only during your turn.

This land enters tapped unless you have two or more opponents.
: Add or .