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.

Moresso, Infuser of Light is all colors.
Hexproof from monocolored
Whenever you cast a spell with four or more mana symbols in its mana cost, add four mana of different colors. This ability triggers only once each turn.

Menace
When Askir enters, each opponent loses life equal to the amount of life they've lost this turn.
Wander—{1}{B}{B}, Pay 4 life.

Whenever Nyxborn Retriever attacks, if defending player has eight or more cards in their graveyard, Nyxborn Retriever gets +2/+1 and gains menace until end of turn.

Drop — When Viral Upstarts enters, if you didn't cast any creature spells during your last turn, draw a card and you lose 1 life.

At the beginning of combat on your turn, if you've spent at least five mana to cast spells this turn, Peaktop Predator deals 2 damage to target player or planeswalker.

When Riotous Rockers enters, it deals 3 damage to up to one target that was dealt damage this turn.

{1}{R}: Rumbling Volcamel and up to one other target creature you control get +1/+0 until end of turn.
Whenever you activate a nonmana ability, if you've spent at least six mana to activate nonmana abilities this turn, transform Rumbling Volcamel.

Vigilance
Whenever Builder of Monuments attacks, put a build counter on it. Then you may search your library for an artifact or enchantment card with mana value less than or equal to the number of build counters on Builder of Monuments, put that card onto the battlefield, then shuffle.

Flying, trample
If a source you control would deal damage to an opponent or a permanent an opponent controls, you may have it deal twice that much damage instead if it's a Dragon or Iviana planeswalker. Otherwise, it deals that much damage plus 2 instead.

Deathtouch
Ward—Pay 4 life.
Whenever Cybele of the Frozen Faith deals combat damage to a player, you may skip your next turn. If you do, at the beginning of your next turn's upkeep, each opponent discards their hand, you draw seven cards, then put seven +1/+1 counters on Cybele.

Return a land you control to its owner's hand: Plated Tunneler gets +1/+0 and gains menace until end of turn.

Ward {X}, where X is the number of differently named lands you control.

Ward {2}
Amity — Whenever Surging Mudskipper attacks, surveil 1. You may play that card from your graveyard this turn. If exactly one other creature attacked with it, this ability triggers three times instead.

Menace
Whenever Imposing Maw deals combat damage to a player, that player loses 3 life unless they discard a card.

Vigilance
Whenever Reborn Reef attacks, target card in your graveyard gains surface until end of turn. The surface cost is equal to its mana cost.

Indestructible
As long as your devotion to green and white is less than seven, Karametra isn't a creature.
Enchantments and enchanted permanents you control have “When this permanent becomes tapped for the first time during each of your turns, untap it.”

When Cosmic Colossus enters, if you cast it from your hand, cast a copy of target card in exile without paying its mana cost unless an opponent exiles two nonland permanents they control.

Whenever you cast a spell that targets Alranta Patrol, create a 1/1 white Human creature token. If Alranta Patrol is attacking, that token enters tapped and attacking.

Flying
When Bringer of Heliod's Light enters, you may bless target creature.

Lifelink
Whenever Laboratory Mentor attacks, teach target attacking creature with lesser power lifelink.

When Lost Resistor dies, you gain 1 life.
Cybersoul {X}{X}{W}

Whenever Spear of the Sun-Crowned attacks, if you control two or more enchanted creatures, it gains lifelink until end of turn.

When this creature transforms into Splintered Soul, create X 3/1 colorless Cyborg Soldier artifact creature tokens.
Whenever Splintered Soul or another Cyborg you control dies, you gain 1 life.