At the beginning of your upkeep, you may create a 0/1 colorless Eldrazi Spawn creature token. It has "Sacrifice this creature: Add ."

Target attacking creature gets +X/+0 until end of turn.
Draw a card at the beginning of the next turn's upkeep.

Flying, deathtouch
When Baleful Strix enters the battlefield, draw a card.

Basalt Monolith doesn't untap during your untap step.
: Add .
: Untap Basalt Monolith.

Equipped creature has deathtouch and lifelink.
Equip

Living weapon (When this Equipment enters the battlefield, create a 0/0 black Germ creature token, then attach this to it.)
Equipped creature gets +4/+4 and has vigilance and lifelink.
: Return Batterskull to its owner's hand.
Equip

At the beginning of combat on your turn, you may have target creature get +2/+0 until end of turn.

Put target artifact or creature card from a graveyard onto the battlefield under your control. Shuffle Beacon of Unrest into its owner's library.

When Blade Splicer enters the battlefield, create a 3/3 colorless Golem artifact creature token.
Golems you control have first strike.

This spell costs less to cast for each creature on the battlefield.
Blasphemous Act deals 13 damage to each creature.

Trample, infect, indestructible
If Blightsteel Colossus would be put into a graveyard from anywhere, reveal Blightsteel Colossus and shuffle it into its owner's library instead.

: Add .
: Blinkmoth Nexus becomes a 1/1 Blinkmoth artifact creature with flying until end of turn. It's still a land.
, : Target Blinkmoth creature gets +1/+1 until end of turn.

Nonbasic lands are Mountains.

Whenever you sacrifice another permanent, put a +1/+1 counter on Bloodbriar.

: Bloodshot Trainee deals 4 damage to target creature. Activate this ability only if Bloodshot Trainee's power is 4 or greater.

Devour 1 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with that many +1/+1 counters on it.)
Each other creature you control enters the battlefield with an additional X +1/+1 counters on it, where X is the number of +1/+1 counters on Bloodspore Thrinax.

This spell costs less to cast if a creature died this turn.
Flying, deathtouch

If you would gain life, you gain twice that much life instead.

Trample
, Sacrifice an artifact: Bosh, Iron Golem deals damage equal to the sacrificed artifact's converted mana cost to any target.

At the beginning of each player's upkeep, that player may put an artifact, creature, or land card from their hand onto the battlefield.