Up to X target creatures you control each get +1/+1 until end of turn. Untap those creatures.

Vanguard — Whenever a creature you control attacks alone, it gets +1/+3 until end of turn.

Defender, reach

Tap up to two target creatures. Put a stun counter on each artifact tapped this way.

When Battle Map enters, search your library for a basic land card, reveal it, put it into your hand, then shuffle.
{3}, Sacrifice Battle Map: Draw a card and create a Weapon token.

Ward {2}
{U}: Spells you cast this turn can be cast as though they had flash.

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}

Whenever a land card is put into your graveyard from anywhere, Bearer of Autumn gets +1/+1 and gains trample 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.

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.

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.

As Bind in Silence enters, choose a nonland card name.
Spells with the chosen name can't be cast.
When Bind in Silence is put into a graveyard from the battlefield, your opponents can't cast spells this turn.

When Biramous Entity enters, search your library for a permanent card with the same name as another target nontoken permanent you control. Reveal it and put that card into your hand. Then shuffle.

Return target nonland permanent to its owner's hand. Create a Glyph token.

Gain control of target creature with power 4 or less until end of turn. Untap that creature. It gains haste until end of turn.

When Black Spy enters, create a first strike Gadget, then attach it to Black Spy.
Enchanted creatures and equipped creatures you control have hexproof from white.

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}

Enchant creature
Enchanted creature gets +1/+2 and has flying.

Flash
When Blightfang Zyxthax enters, discard a card. If you do, it gains deathtouch until end of turn.

Lifelink
{1}{B}: Blightling gets +1/+1 until end of turn.

Flash
When Blind Keelah enters and whenever you cast a spell during an opponent's turn, each opponent loses 1 life and you surveil 1. This ability triggers only once each turn.