Rasaad yn Bashir 

Legendary Creature — Human Monk
Each creature you control assigns combat damage equal to its toughness rather than its power.
Whenever Rasaad yn Bashir attacks, if you have the initiative, double the toughness of each creature you control until end of turn.
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Grunn, the Lonely King 83%
$0.18#8780
"Whenever this card attacks alone, double its power and toughness until end of turn."
Tanazir Quandrix 81%
$0.25#8639
"Whenever this card attacks, you may have the base power and toughness of other creatures you control become equal to this card's power and toughness until end of turn."
War Machine, Avenging Arsenal 80%
$0.88#15123
"Whenever this card attacks, attacking modified creatures you control gain double strike until end of turn."
Belligerent Brontodon 100%
$0.21#19536
"Each creature you control assigns combat damage equal to its toughness rather than its power."
Huatli, the Sun's Heart 100%
$0.34#6433
"Each creature you control assigns combat damage equal to its toughness rather than its power."
High Alert 100%
$0.42#5590
"Each creature you control assigns combat damage equal to its toughness rather than its power."
Assault Formation 100%
$0.38#2524
"Each creature you control assigns combat damage equal to its toughness rather than its power."
Felothar the Steadfast 100%
$2.83#4258
"Each creature you control assigns combat damage equal to its toughness rather than its power."
Bedrock Tortoise 91%
$2.36#3552
"Each creature you control with toughness greater than its power assigns combat damage equal to its toughness rather than its power."
Ancient Lumberknot 91%
$0.32#7887
"Each creature you control with toughness greater than its power assigns combat damage equal to its toughness rather than its power."
Tapestry Warden 91%
$0.26#15911
"Each creature you control with toughness greater than its power assigns combat damage equal to its toughness rather than its power."
Doran, the Siege Tower 88%
$9.34#5299
"Each creature assigns combat damage equal to its toughness rather than its power."
Ikra Shidiqi, the Usurper 88%
$0.36#3733
"Whenever a creature you control deals combat damage to a player, you gain life equal to that creature's toughness."
+1 more matching line
Beastie Beatdown 81%
$0.19#14182
"The creature you control deals damage equal to its power to the creature an opponent controls."
Streetwise Negotiator 81%
$0.15#23601
"This creature assigns combat damage equal to its toughness rather than its power."