Magical Tinkering — , , Sacrifice an artifact: Search your library for an artifact card with mana value equal to 1 plus the sacrificed artifact's mana value, put it onto the battlefield, then shuffle. Activate only as a sorcery.

Any number of target players each discard a number of cards equal to the greatest mana value among permanents you control.

Whenever Fire Lord Ozai attacks, you may sacrifice another creature. If you do, add an amount of equal to the sacrificed creature's power. Until end of combat, you don't lose this mana as steps end.
: Exile the top card of each opponent's library. Until end of turn, you may play one of those cards without paying its mana cost.

Enchant artifact you control
At the beginning of your upkeep, create a token that's a copy of enchanted artifact. Then if you control eight or more artifacts with the same name as one another, you win the game.

Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)
Whenever this creature deals combat damage to a player, destroy target artifact or enchantment that player controls.

This creature enters with four +1/+1 counters on it.
Remove a +1/+1 counter from this creature: Add .

Other tapped creatures you control have deathtouch.
Other untapped creatures you control have hexproof.
, : Untap another target creature or land you control.

: Add .
, : Each player draws a card, then discards a card.

Choose one —
• Draw cards equal to the greatest power among creatures you control. You lose life equal to the number of cards drawn this way.
• All creatures get -3/-3 until end of turn.

: Create X 1/1 red Goblin creature tokens, where X is the number of Goblins you control.

When this creature enters, discard a card, then draw a card.
Delirium — Whenever this creature attacks for the first time each turn, if there are four or more card types among cards in your graveyard, untap target creature. After this phase, there is an additional combat phase.

, Sacrifice a creature: Put two +1/+1 counters on target creature.
, Remove a counter from a creature you control: Create a Treasure token.
, Sacrifice an artifact: Create a 2/1 white and black Inkling creature token with flying.
: Untap Fain.

Spree (Choose one or more additional costs.)
+ — All creatures lose all abilities until end of turn.
+ — Choose a creature you control. It gains indestructible until end of turn.
+ — Destroy all creatures.

Flying
Whenever this Vehicle attacks, if you control a Time Lord, the next spell you cast this turn has cascade and you may planeswalk.
Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.)

You gain 4 life.
Recover (When a creature is put into your graveyard from the battlefield, you may pay . If you do, return this card from your graveyard to your hand. Otherwise, exile this card.)

When this creature enters, it deals damage to each opponent equal to your devotion to red. (Each in the mana costs of permanents you control counts toward your devotion to red.)

: Add three mana of any one color.

Menace
Creatures you control have wither. (They deal damage to creatures in the form of -1/-1 counters.)
Whenever a creature an opponent controls dies, if its toughness was less than 1, draw a card.

Choose up to two target permanent cards in your graveyard that were put there from the battlefield this turn. Return them to the battlefield tapped.

, Sacrifice a black or artifact creature: Add an amount of equal to the sacrificed creature's mana value.