{2}: Target creature gets +0/+3 until end of turn. Activate only as a sorcery and only once each turn.

At the beginning of combat on your turn, up to one target creature you control has base power and toughness X/X until end of turn, where X is the number of enchantments you control.
When Lykaretos dies, bless target land.

Magdalena Bay enters tapped.
{T}: Add {G}, {W}, or {U}.
{VP}{VP}{VP}{VP}, Discard Magdalena Bay: Target creature gets +3/+3 and gains menace until end of turn.

{R}, Sacrifice Magma Flow: It deals 3 damage to any target. Activate only as a sorcery.
{1}{R}, Discard a card, Sacrifice Magma Flow: Draw two cards.

Amity — Whenever you attack with Magma Grunt and exactly one other creature, Magma Grunt deals 1 damage to each opponent.

{2}: Magnetic Mystery gets +1/+0 until end of turn. Activate only as a sorcery.
As long as you control another artifact, Magnetic Mystery has flying.

Whenever Magnetic Rhetorician attacks, make a pledge.

When Magnetic Snuffler enters, return target Equipment card from your graveyard to the battlefield attached to Magnetic Snuffler.
Whenever you sacrifice an artifact, put a +1/+1 counter on Magnetic Snuffler.

{1}: Untap Magnetling.
{1}: Magnetling can't be blocked by creatures with power 2 or less this turn.
{1}: Choose a card type. Magnetling loses that type until end of turn.
{1}: Magnetling gets +1/-1 or -1/+1 until end of turn.

Trample
When Main Street Hooligang enters, if you control a green permanent, you may have Main Street Hooligang fight target creature.

{2}, {T}: Exile target creature you control, then reveal the top card of your library. If the revealed card is a creature card, put it onto the battlefield. Otherwise, return the exiled card to the battlefield under its owner's control.

Deathtouch
Drop — When Malicious Mech enters, each player sacrifices a creature. If you didn't cast any creature spells during your last turn, instead each opponent sacrifices a creature.

Flying
When Malicious Skycleaver enters, pay any amount of life. It deals that much damage to each other creature.
Cybersoul {7}{B}{B}

{T}: Add one mana of any color.
Whenever you cast a multicolored spell, untap Mana Harvesters. This ability triggers only once each turn.

Enchant land you control
Enchanted land is a 2/2 Elemental creature with vigilance, haste, and “{T}: Add two mana of different colors.” It's still a land.
If enchanted land would leave the battlefield, instead sacrifice Manifest the Lightveins and that land gains indestructible until end of turn.

{6}: Put two +1/+1 counters on target creature you control. Activate only as a sorcery and only if your devotion to white is three or more.

Sacrifice a Treasure: Put a loyalty counter on Marilye, Dreaming Big.
[+1]: Draw a card, then discard a card. If you discarded a nonland card this way, create a tapped Treasure token.
[–3]: Gain control of target artifact. It becomes a Treasure artifact, loses all other types, and loses all abilities except for activated mana abilities.
[–8]: Target opponent chooses a nonland permanent they control. You gain control of the rest.

When Masked Duo enters, tap up to one target creature. If you control an artifact, that creature doesn't untap during its controller's next untap step.

At the beginning of combat on your turn, you may have target Advisor you control get +2/-1 until end of turn.

Mass of Remains's power is equal to the total number of permanent cards you own in your graveyard and in exile.
Spellcharge 3

Matter Harvester has protection from mana values less than the number of artifacts you control.
Whenever a nonland permanent you don't control leaves the battlefield, create a 1/1 colorless Cyborg artifact creature token.

Menace
{4}{B}{B}: Transform Maw Impostor.

When Meeting of the Elites enters, create a tapped Treasure token.
You've sacrificed a nonland permanent this turn.

Equipped creature gets +0/+1 and has vigilance.
Equipped creature assigns combat damage equal to its toughness rather than its power, and can attack as though it didn't have defender.
Equip {2}

Whenever you draw your second card each turn, scry 1 then put a +1/+1 counter on Melancholic Oracle.