Keyword: Shadow

Shadow (This creature can block or be blocked by only creatures with shadow.)
Whenever Thalakos Deceiver attacks and isn’t blocked, you may sacrifice it. If you do, gain control of target creature. (This effect lasts indefinitely.)

Shadow (This creature can block or be blocked by only creatures with shadow.)
: The next time Soltari Guerrillas would deal combat damage to an opponent this turn, it deals that damage to target creature instead.

Shadow (This creature can block or be blocked by only creatures with shadow.)
: Put Thalakos Mistfolk on top of its owner’s library.

Shadow (This creature can block or be blocked by only creatures with shadow.)
: Soltari Crusader gets +1/+0 until end of turn.

Protection from black
Shadow (This creature can block or be blocked by only creatures with shadow.)

Shadow (This creature can block or be blocked by only creatures with shadow.)
Whenever a creature with shadow dies, put a +1/+1 counter on Dauthi Ghoul.

Shadow (This creature can block or be blocked by only creatures with shadow.)
Whenever Dauthi Mindripper attacks and isn’t blocked, you may sacrifice it. If you do, defending player discards three cards.

Shadow (This creature can block or be blocked by only creatures with shadow.)
Whenever Soltari Trooper attacks, it gets +1/+1 until end of turn.

Shadow (This creature can block or be blocked by only creatures with shadow.)
Soltari Lancer has first strike as long as it’s attacking.

Shadow (This creature can block or be blocked by only creatures with shadow.)

Protection from red
Shadow (This creature can block or be blocked by only creatures with shadow.)

Shadow (This creature can block or be blocked by only creatures with shadow.)
When Thalakos Seer leaves the battlefield, draw a card.

Shadow (This creature can block or be blocked by only creatures with shadow.)
Dauthi Slayer attacks each combat if able.

Shadow (This creature can block or be blocked by only creatures with shadow.)

Shadow (This creature can block or be blocked by only creatures with shadow.)
You may choose not to untap Thalakos Dreamsower during your untap step.
Whenever Thalakos Dreamsower deals damage to an opponent, tap target creature. That creature doesn’t untap during its controller’s untap step for as long as Thalakos Dreamsower remains tapped.