Counter target spell. If that spell is countered this way, put it on the bottom of its owner's library instead of into that player's graveyard. Put Spell Crumple on the bottom of its owner's library.

Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.

Gain control of target Equipment, then create a 0/0 black Phyrexian Germ creature token and attach that Equipment to it.

Flying
When this creature dies, return another target artifact card from your graveyard to your hand.

, : Create a token that's a copy of target creature card in your graveyard, except it's an artifact in addition to its other types. It gains haste. Sacrifice it at the beginning of the next end step.

Search your library for up to three creature cards, put them into your graveyard, then shuffle.

Whenever one or more creatures attack, you may have target attacking creature gain double strike until end of turn.

Equipped creature gets +3/+0 and has trample and lifelink.
Equip

Draw a card for each creature you control with a +1/+1 counter on it. Those creatures gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)

This artifact enters tapped.
: Add .

At the beginning of your upkeep, put a +1/+1 counter on this creature.
At the beginning of your end step, destroy each creature with mana value equal to the number of +1/+1 counters on this creature.
Dredge 2 (If you would draw a card, you may mill two cards instead. If you do, return this card from your graveyard to your hand.)

Kicker (You may pay an additional as you cast this spell.)
Destroy target artifact or enchantment. If this spell was kicked, it deals damage equal to that permanent's mana value to target creature.

Enchant player
Creatures enchanted player controls attack each combat if able.

, : Put a fate counter on target permanent.
, , Sacrifice this artifact: Destroy each nonland permanent without a fate counter on it, then remove all fate counters from all permanents.

Creatures with power less than this creature's power can't block creatures you control.
Whenever another creature you control enters, put a +1/+1 counter on this creature.

Outlast (, : Put a +1/+1 counter on this creature. Outlast only as a sorcery.)
Each creature you control with a +1/+1 counter on it has flying.

Haste
When Tuktuk the Explorer dies, create Tuktuk the Returned, a legendary 5/5 colorless Goblin Golem artifact creature token.

Giant spells you cast cost less to cast.

Enchant creature
Enchanted creature gets +2/+2, has intimidate, and can't attack you or planeswalkers you control. (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Flying
: Tap all creatures target player controls.

Whenever a creature you control with a +1/+1 counter on it deals combat damage to a player, you may draw a card.

Enchant creature
Enchanted creature gets +3/+3, has trample, and can't attack you or planeswalkers you control.

Meteor Blast deals 4 damage to each of X targets.

At the beginning of your upkeep, each player may put two +1/+1 counters on a creature they control. If a player does, creatures that player controls can't attack you or planeswalkers you control until your next turn.

When this enchantment enters, exile target nonland permanent an opponent controls until this enchantment leaves the battlefield.

Reveal the top ten cards of your library. Starting with the next opponent in turn order, each opponent chooses a different nonland card from among them. Put the chosen cards into your hand and the rest on the bottom of your library in a random order.

When this creature enters, you may return target card from your graveyard to your hand.

Flying
When this creature enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Whenever an opponent casts a spell, that player mills two cards.

When this creature dies, you may search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.
, Sacrifice this creature: Draw a card.

: Add one mana of any color in your commander's color identity.
Sacrifice this artifact: Draw a card.

Whenever a creature attacks you or a planeswalker you control, that creature's controller mills two cards.

Changeling (This card is every creature type.)
Exile target creature. Its controller creates a 1/1 colorless Shapeshifter creature token with changeling.

Indestructible (Effects that say "destroy" don't destroy this artifact.)
: Add one mana of any color.

Destroy target creature or enchantment.

Changeling (This card is every creature type.)
Whenever an opponent casts a spell, you may put a +1/+1 counter on this creature.