At the beginning of your upkeep, you may create a 0/1 colorless Eldrazi Spawn creature token. It has "Sacrifice this creature: Add {C}."
{1}{G}
Brindle Shoat
Creature - Boar
When Brindle Shoat dies, create a 3/3 green Boar creature token.
1 /
1
{2}
Demon's Horn
Artifact
Whenever a player casts a black spell, you may gain 1 life.
{4}{R}{R}
Flameblast Dragon
Creature - Dragon
Flying
Whenever Flameblast Dragon attacks, you may pay {X}{R}. If you do, Flameblast Dragon deals X damage to any target.
5 /
5
{R}{G}
Hull Breach
Sorcery
Choose one --
• Destroy target artifact.
• Destroy target enchantment.
• Destroy target artifact and target enchantment.
{2}{R}{R}
Krenko, Mob Boss
Legendary Creature - Goblin Warrior
{T}: Create X 1/1 red Goblin creature tokens, where X is the number of Goblins you control.
3 /
3
{3}{G}{G}
Mycoloth
Creature - Fungus
Devour 2 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with twice that many +1/+1 counters on it.)
At the beginning of your upkeep, create a 1/1 green Saproling creature token for each +1/+1 counter on Mycoloth.
4 /
4
{2}{B}{R}{G}
Sek'Kuar, Deathkeeper
Legendary Creature - Orc Shaman
Whenever another nontoken creature you control dies, create a 3/1 black and red Graveborn creature token with haste.
4 /
3
{3}{B}
Syphon Mind
Sorcery
Each other player discards a card. You draw a card for each card discarded this way.
{3}{R}{G}
Thromok the Insatiable
Legendary Creature - Hellion
Devour X, where X is the number of creatures devoured this way (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with X +1/+1 counters on it for each of those creatures.)
0 /
0
{G}
Tukatongue Thallid
Creature - Fungus
When Tukatongue Thallid dies, create a 1/1 green Saproling creature token.
1 /
1
{2}{B}{R}{G}
Wasitora, Nekoru Queen
Legendary Creature - Cat Dragon
Flying, trample
Whenever Wasitora, Nekoru Queen deals combat damage to a player, that player sacrifices a creature. If the player can't, you create a 3/3 black, red, and green Cat Dragon creature token with flying.
5 /
4
{3}{R}{G}
Xenagos, God of Revels
Legendary Enchantment Creature - God
Indestructible
As long as your devotion to red and green is less than seven, Xenagos isn't a creature.
At the beginning of combat on your turn, another target creature you control gains haste and gets +X/+X until end of turn, where X is that creature's power.