Cards like Kinscaer Sentry

Arni Metalbrow84%

$0.17↓#10788↓0.27↑3.3 years↑

"Whenever a creature you control attacks or enters attacking, you may pay

. If you do, you may put a creature card with mana value less than that creature's mana value from your hand onto the battlefield tapped and attacking."

sneak-creature, attacking-matters, attack-trigger

Paladin Elizabeth Taggerdy84%

$0.34↓#71200.80↑2.5 years↑

"Whenever this card and at least two other creatures attack, draw a card, then you may put a creature card with mana value X or less from your hand onto the battlefield tapped and attacking, where X is this card's power."

sneak-creature, low-mana-value-matters, attacking-matters

Nick Fury, Spymaster83%

$0.28↓#22245↓0.000.2 years

"Whenever a creature you control attacks alone, draw a card. Then you may put a creature card with mana value 3 or less from your hand onto the battlefield. It enters tapped and attacking and gains indestructible until end of turn."

sneak-creature, low-mana-value-matters, attacking-matters

Aether Vial82%

$2.04↑#5842↑0.43↑22.6 years↑

"

: You may put a creature card with mana value equal to the number of charge counters on this artifact from your hand onto the battlefield."

sneak-creature, sneak, cost-ignorer

Brightblade Stoat80%

$0.19↓#12767↓0.002.1 years↑

"First strike, lifelink"

repeatable-lifegain, lifegain

Extraction Specialist80%

$0.31↓#13403↓0.26↑4.4 years↑

"Lifelink"

low-mana-value-matters, repeatable-lifegain, mana-value-matters

Preeminent Captain80%

$0.74↑#9508↓0.18↑18.6 years↑

"Whenever this creature attacks, you may put a Soldier creature card from your hand onto the battlefield tapped and attacking."

sneak-creature, attacking-matters-self, attack-trigger

Sledge-Class Seedship79%

$0.22↓#86690.18↑1.1 years

"Whenever this Spacecraft attacks, you may put a creature card from your hand onto the battlefield."

sneak-creature, attacking-matters-self, attack-trigger

Bishop of Rebirth78%

$0.39↑#11480↓0.36↑8.9 years↑

"Whenever this creature attacks, you may return target creature card with mana value 3 or less from your graveyard to the battlefield."

low-mana-value-matters, attacking-matters-self, attack-trigger

Custodi Soulcaller78%

$0.29↓#21362↓0.0010.0 years↑

"Whenever this creature attacks, return target creature card with mana value X or less from your graveyard to the battlefield, where X is the number of players you attacked this combat."

low-mana-value-matters, attacking-matters-self, attack-trigger

Bereaved Survivor // Dauntless Avenger78%

$0.23↓#18709↓0.71↑4.9 years↑

"Whenever this creature attacks, return target creature card with mana value 2 or less from your graveyard to the battlefield tapped and attacking."

low-mana-value-matters, attacking-matters-self, attack-trigger

Redemption Choir78%

$0.30↓#61940.13↑2.8 years↑

"Lifelink"

low-mana-value-matters, repeatable-lifegain, attacking-matters-self

Elvish Piper78%

$1.44↑#3095↑0.66↑27.2 years↑

"

,

: You may put a creature card from your hand onto the battlefield."

sneak-creature, sneak, cost-ignorer

Disciple of the Sun77%

$0.18↓#21682↓0.53↑5.2 years↑

"Lifelink"

low-mana-value-matters, repeatable-lifegain, mana-value-matters

Quicksilver Amulet77%

$2.30↑#4034↑0.50↑27.6 years↑

"

,

: You may put a creature card from your hand onto the battlefield."

sneak-creature, sneak, cost-ignorer

Ghalta, Stampede Tyrant77%

$27.22↑#1074↑0.88↑2.8 years↑

"When this card enters, put any number of creature cards from your hand onto the battlefield."

sneak-creature, sneak, cost-ignorer

Mr. Foxglove76%

$0.31↓#70570.21↑2.1 years↑

"Whenever this card attacks, draw cards equal to the number of cards in defending player's hand minus the number of cards in your hand. If you didn't draw cards this way, you may put a creature card from your hand onto the battlefield."

+1 more matching line

sneak-creature, repeatable-lifegain, attacking-matters-self