Enchant creature
Enchanted creature has double strike.

Enchant player
Enchanted player may cast blue spells with mana value less than or equal to their devotion to blue without paying their mana costs.

Enchant creature
Enchanted creature gets +2/+2 and has flying.
Whenever enchanted creature dies, create a 2/2 white Pegasus creature token with flying.

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

Target creature gets +2/+2 until end of turn and must be blocked this turn if able. Untap up to one target creature. It blocks this turn if able.
Surface {4}{G}

Enchant creature
Enchanted creature can't attack or block.

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

Flying, haste
When Blistering Cryophoenix enters, discard any number of cards, then draw that many cards.
If a spell you own which had its flashback cost paid would be put into exile, put it into your hand instead.

Haste
Whenever Bloom Brute deals combat damage to a player, create two Berry tokens.

Flying
When Blooming Sauropod enters, create two Berry tokens, then sacrifice any number of Berries. For each Berry sacrificed this way, put a +1/+1 counter on another creature you control.

Flying
When Blue Collar Bloodsucker enters, you gain 2 life. Then if you control a red permanent, Blue Collar Bloodsucker deals 2 damage to each opponent.

Choose one. If you control a Weather as you cast this spell, you may choose both instead.
• Put a +1/+1 counter on target creature for each basic land type among lands you control.
• Target creature you control deals damage equal to its power to target creature you don't control.

Choose one. If you control a Weather as you cast this spell, you may choose both instead.
• Creatures you control get +2/+1 until end of turn.
• Boiling Storm deals 2 damage to each creature.

Choose one or both —
• Target creature you control gets +1/+1 until end of turn.
• Create a 1/1 white Human creature token.

Defender
{3}{W}, {T}, Sacrifice Border Junction: Create three 1/1 colorless Soldier creature tokens. Activate only as a sorcery.

Whenever a creature card or creature token is put into your graveyard from anywhere, put a +1/+1 counter on Bottom Feeder.

Destroy target artifact creature or creature with flying.

Bouncers-for-Hire can't attack unless you control a red permanent.

Destroy target tapped creature. If its power was 3 or less, you gain 3 life.
Create a Weapon token.

Brass Laborer enters with two reach counters on it.

Whenever you cast an instant spell, put a +1/+1 counter on Brass Oracle.
Whenever you cast a sorcery spell, Brass Oracle deals damage to any target equal to its power.

Lifelink
Approval — {5}, {T}: Tap target creature. This ability costs {X} less to activate, where X is the number of colors among permanents you control.

Flying
When Breaching Jaxl enters, untap target nonland permanent.
Wander {2}{U}

Haste
Whenever you amp it up, put a +1/+1 counter on Breakbot. It gains first strike until end of turn.