Spells you cast and abilities you activate that target equipped creature cost {2} less. This ability can't reduce the mana in that cost to less than one mana.
Equipped creature gets +1/+1 and has lifelink.
Equip {2}

Reach, haste
Drop — When Beat Devastator enters, if you didn't cast any creature spells during your last turn, Beat Devastator gains vigilance until end of turn. Up to one target creature blocks it this turn if able.

When Beatswitch Bot leaves the battlefield, if it's your turn, draw a card.

Flying
Whenever you amp it up, create a 1/1 colorless Servo artifact creature token.

When Beckoner of Ends enters, target player discards a card. Integrate that card.
Beckoner of Ends has deathtouch as long as a land card is integrated onto it.

{4}{B}{B}, Exile Begin the Imperial Era from your hand: At the beginning of your next upkeep, you may cast Begin the Imperial Era from exile without paying its mana cost. Activate only as a sorcery.
You draw three cards and each opponent discards three cards. Each player loses 3 life.

When Beguiling Stewards enters, if it's not a token, create a token that's a copy of it.
Beguiling Stewards has deathtouch as long as you control another creature named Beguiling Stewards.

Flash
Ward {3}
You may reveal the second card you draw each turn as you draw it. When you do, you may cast it without paying its mana cost. If you didn't cast a spell this way, create two Treasure tokens.

At the beginning of combat of your turn, Belief-Belying Beast gains flying until end of turn if you control a creature with flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance.

{U}{R}{W}: Creatures you control get +1/+1 until end of turn.

Ruins you control can't be blocked by creatures with power 2 or less.
{1}, {T}: Put a +1/+1 counter on target Ruin.
Spellcharge 5

Creatures you control with power greater than their base power can't be blocked by more than one creature.
{G}{W}: Target creature gets +1/+1 until end of turn. Activate only as a sorcery.

Beloved Poppet can't be blocked by creatures with power 4 or greater.
Surface {4}{B}. This spell costs {3} less to cast if Beloved Poppet died this turn. Beloved Poppet surfaces transformed.

Flash
When Benthalos of Land and Sea enters, you may pay {X}. When you do, create a token that's a copy of target white or blue enchantment you control with mana value X or less.

When Berry Fermenter enters, create a Berry token.
Berries you control have “{T}, Sacrifice this artifact: Add one mana of any color.” and “{2}, {T}, Sacrifice this artifact: You gain 3 life.”

Whenever Berry Harvester enters or attacks, create a Berry token.
The first time you would create one or more Berry tokens each turn, create an additional Berry token.

Deathtouch
Whenever a creature you control deals combat damage to an opponent, draw a card. You lose 1 life unless that creature had deathtouch.

Return any number of target creature cards with total mana value twice X or less from your graveyard to the battlefield. They're artifacts in addition to their other types.

Bioengineered Opus enters with three +1/+1 counters, a lifelink counter, and a vigilance counter on it.
When Bioengineered Opus dies, for each creature you control, you may move a counter from Bioengineered Opus onto that creature.

Creatures you control have “{T}: Create a Treasure token.”
{W}{U}{B}{R}{G}, Sacrifice Black-Tie Gala: Draw two cards.

Return target nonland permanent to its owner's hand. Then that player reveals their hand. You choose a nonland card from it. That player discards that card.

When Blackout Grifter enters, each opponent loses 1 life and you gain 1 life.
Cybersoul {3}{B}

Equipped creature gets +1/+2 and has “At the beginning of your end step, put a time counter on Blade of Bright Futures.”
{2}, Sacrifice Blade of Bright Futures: You gain X life and draw X cards, where X is one plus the number of time counters on it. Activate only as a sorcery.
Equip {2}

Equipped creature gets +2/+1 and has “At the beginning of your end step, put a time counter on Blade of Clouded Pasts.”
{2}, Sacrifice Blade of Clouded Pasts: Target player loses X life and discards X cards, where X is one plus the number of time counters on it. Activate only as a sorcery.
Equip {2}

Whenever an attacking creature you control dies, Bleeding Edge Memorial deals 1 damage to defending player.
Spellcharge 4