When Monitor Monitor enters the battlefield, open an Attraction. (Put the top card of your Attraction deck onto the battlefield.)

Once each turn, you may pay to reroll one or more dice you rolled.

When Monstrosity of the Lake enters the battlefield, you may pay . If you do, tap all creatures your opponents control, then put a stun counter on each of those creatures. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Islandcycling (, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle.)

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Moon-Circuit Hacker deals combat damage to a player, you may draw a card. If you do, discard a card unless Moon-Circuit Hacker entered the battlefield this turn.

When Moonlit Scavengers enters the battlefield, if you control an artifact or enchantment, return target creature an opponent controls to its owner's hand.

Whenever a creature dies, you gain 1 life.

Exchange your graveyard and library. Then shuffle your library.

Changeling (This card is every creature type.)

You may have Moritte of the Frost enter the battlefield as a copy of a permanent you control, except it's legendary and snow in addition to its other types and, if it's a creature, it enters with two additional +1/+1 counters on it and has changeling.

This spell costs less to cast if you gained life this turn.

Destroy target nonland permanent.

Kicker (You may pay an additional as you cast this spell.)

If Moss-Pit Skeleton was kicked, it enters the battlefield with three +1/+1 counters on it.

Whenever one or more +1/+1 counters are put on a creature you control, if Moss-Pit Skeleton is in your graveyard, you may put Moss-Pit Skeleton on top of your library.

: Until end of turn, whenever you cast a black spell, put a +1/+1 counter on Mountain Titan.

Flash

When Munitions Expert enters the battlefield, you may have it deal damage to target creature or planeswalker equal to the number of Goblins you control.

, : Look at the top X cards of your library, where X is the highest mana value among artifacts you control. You may put an artifact card from among them onto the battlefield. Put the rest on the bottom of your library in any order.

When Myr Kinsmith enters the battlefield, you may search your library for a Myr card, reveal it, put it into your hand, then shuffle.

Whenever you cast an artifact spell, you may pay . If you do, create a 1/1 colorless Myr artifact creature token.

Lands you control have ": Add one mana of any color."

If a Wizard entering the battlefield under your control causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

+2: Create a 1/1 white Kor Soldier creature token. You may attach an Equipment you control to it.

−2: You may put an Equipment card from your hand or graveyard onto the battlefield.

−10: Create a colorless Equipment artifact token named Stoneforged Blade. It has indestructible, "Equipped creature gets +5/+5 and has double strike," and equip .

Nahiri, the Lithomancer can be your commander.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

If tapped for mana, Plains produce , Islands produce , Swamps produce , Mountains produce , and Forests produce instead of any other type.

All lands become 2/2 creatures until end of turn. They're still lands.

Whenever Necrite attacks and isn't blocked, you may sacrifice it. If you do, destroy target creature defending player controls. It can't be regenerated.

Whenever a nontoken Zombie enters the battlefield under your control, create a token that's a copy of that creature.

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Whenever a creature an opponent controls with a -1/-1 counter on it dies, you may return that card to the battlefield under your control.

If an opponent gained life this turn, you may pay rather than pay this spell's mana cost.

Target player loses 5 life and you gain 5 life.

At the beginning of your upkeep, if Nether Spirit is the only creature card in your graveyard, you may return Nether Spirit to the battlefield.

Equipped creature has shroud. (It can't be the target of spells or abilities.)

: Attach Neurok Stealthsuit to target creature you control.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

When Niambi, Faithful Healer enters the battlefield, you may search your library and/or graveyard for a card named Teferi, Timebender, reveal it, and put it into your hand. If you search your library this way, shuffle.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Suspend 7— (Rather than cast this card from your hand, you may pay and exile it with seven time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.)

Whenever a card is put into an opponent's graveyard from anywhere, if Nihilith is suspended, you may remove a time counter from Nihilith.

Whenever Nimble Hobbit attacks, you may sacrifice a Food or pay . When you do, tap target creature an opponent controls.

+1: Untap target land you control. Until your next turn, it becomes a 5/5 Elemental creature with haste. It's still a land.

−3: Return target permanent card from your graveyard to your hand.

−6: You get an emblem with "Whenever a land enters the battlefield under your control, you may draw a card."

Each player who controls the most creatures investigates. Then destroy all creatures. (To investigate, create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Noggle Bandit can't be blocked except by creatures with defender.

: Untap target blue creature.

: Choose target non-Wall creature the active player has controlled continuously since the beginning of the turn. That creature attacks this turn if able. Destroy it at the beginning of the next end step if it didn't attack this turn. Activate only before attackers are declared.

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Enchanted creature gets +2/+3.

: Add one mana of any color.

, Exert Oasis Ritualist: Add two mana of any one color. (An exerted creature won't untap during your next untap step.)

Menace

Whenever Obeka, Splitter of Seconds deals combat damage to a player, you get that many additional upkeep steps after this phase.

Obliterating Bolt deals 4 damage to target creature or planeswalker. If that creature or planeswalker would die this turn, exile it instead.

: Draw a card, then discard a card.

, , Sacrifice Obsessive Stitcher: Return target creature card from your graveyard to the battlefield.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Whenever Odylic Wraith deals damage to a player, that player discards a card.

Target creature gains deathtouch and indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

When Oji, the Exquisite Blade enters the battlefield, you gain 2 life and scry 2.

Whenever you cast your second spell each turn, exile up to one target creature you control, then return it to the battlefield under its owner's control.

Flying

At the beginning of each end step, if a creature died this turn, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

, Sacrifice another creature or artifact: Old Flitterfang gets +2/+2 until end of turn.

Exile all permanents and all cards from all graveyards. Each player shuffles their hand into their library, then draws seven cards. Each player's life total becomes 10. Exile Once More with Feeling.

DCI ruling — A deck can have only one card named Once More with Feeling.

You lose the game.

Discard your hand.

Draw cards equal to the highest mana value among artifacts you control.

Enchant creature or enchantment

Enchanted permanent is an enchantment and loses all other card types. (It still has its abilities, but it's no longer a creature.)

Whenever an opponent casts a creature spell, if Opal Acrolith is an enchantment, Opal Acrolith becomes a 2/4 Soldier creature.

: Opal Acrolith becomes an enchantment.

Target player draws four cards.

Flash

You control your opponents while they're searching their libraries.

While an opponent is searching their library, they exile each card they find. You may play those cards for as long as they remain exiled, and you may spend mana as though it were mana of any color to cast them.

Protection from black

: Order of Leitbur gains first strike until end of turn.

: Order of Leitbur gets +1/+0 until end of turn.