+2: Discard up to two cards, then draw that many cards.
−2: Sacrifice an artifact. If you do, return target artifact card from your graveyard to the battlefield.
−10: You get an emblem with "Whenever an artifact is put into your graveyard from the battlefield, return that card to the battlefield at the beginning of the next end step."
Daretti, Scrap Savant can be your commander.

Landfall — Whenever a land you control enters, Tannuk deals 1 damage to each opponent. If this is the second time this ability has resolved this turn, draw a card.

When this enchantment enters, airbend up to one target creature.
Whenever a creature you control enters, put a quest counter on this enchantment.
At the beginning of your end step, if this enchantment has four or more quest counters on it, exile up to one target creature you control, then return it to the battlefield under its owner's control.

: Put three +1/+1 counters on target artifact you control. If it isn't a creature, it becomes a 0/0 Robot creature in addition to its other types. Activate only as a sorcery.
Whenever an artifact you control is put into a graveyard from the battlefield, if it had counters on it, put those counters on up to one target artifact or creature you control.

Flying, vigilance
Whenever you cast a noncreature spell, choose one that hasn't been chosen this turn —
• Solar Beam — The Vision gains double strike until end of turn.
• Density Control — The Vision gains indestructible until end of turn.
• Technopathy — Draw a card.

( can be paid with either or 2 life.)
Lifelink
For each in a cost, you may pay 2 life rather than pay that mana.
Whenever you cast a black spell, put a +1/+1 counter on K'rrik.

Morbid — This spell costs less to cast if a creature died this turn.
Enchant creature
When this Aura enters, untap each creature you control. If it's your main phase, there is an additional combat phase after this phase.
Enchanted creature gets +2/+2 and has haste.

Trample
When this creature enters, you become the monarch.
Whenever you tap a land for mana while you're the monarch, add an additional one mana of any color.

When this enchantment enters and at the beginning of your upkeep, you lose 1 life and create a Clue token. (It's an artifact with ", Sacrifice this token: Draw a card.")
Whenever you attack, put X +1/+1 counters on target attacking creature, where X is the number of permanents you've sacrificed this turn. If X is three or more, that creature gains lifelink until end of turn.

Exile the top X cards of target opponent's library. You may play those cards this turn. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost.

Look at the top twenty cards of your library, put any number of land cards from among them onto the battlefield tapped, then shuffle. You gain 8 life.

(Gain the next level as a sorcery to add its ability.)
Whenever a creature you control leaves the battlefield, each opponent loses 1 life.
: Level 2
Creatures you control get +1/+0 and have menace.
: Level 3
Creature cards in your graveyard have sneak .
You may cast creature spells from your graveyard using their sneak abilities.

Flying
When Smaug enters, create X tapped Treasure tokens, where X is the number of artifacts your opponents control.
Whenever you cast a spell, if mana from a Treasure was spent to cast it, you draw a card and lose 1 life.

: Add .
Put a -1/-1 counter on this creature: Untap this creature.

Exile the top three cards of your library. Until the end of your next turn, you may play those cards.
Create three Treasure tokens. (They're artifacts with ", Sacrifice this token: Add one mana of any color.")

Whenever Mockingbird is dealt damage, put a +1/+1 counter on her. (She must survive the damage to get the counter.)

When The Sackville-Bagginses enter, you may sacrifice another creature or artifact. If you do, draw a card and create a Treasure token.
Whenever you sacrifice a token, target opponent loses 1 life.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
This artifact enters tapped.
: Add .

Whenever this creature or another nontoken creature you control dies, you may create a 0/1 colorless Eldrazi Spawn creature token. It has "Sacrifice this token: Add ."