Lightning Runner {3}{R}{R}
Creature — Human Warrior
Double strike, haste
Whenever this creature attacks, you get {E}{E} (two energy counters), then you may pay eight {E}. If you pay, untap all creatures you control, and after this phase, there is an additional combat phase.
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Cards that do something similar expected a card that isn't here?
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Slicer, Hired Muscle // Slicer, High-Speed Antagonist 100%
$9.18#3316
"Double strike, haste"
+1 more matching line
Hellkite Charger 88%
$4.10#2125
"Whenever this creature attacks, you may pay {5}{R}{R}. If you do, untap all attacking creatures and after this phase, there is an additional combat phase."
Shakedown Heavy 86%
$0.35#6566
"Whenever this creature attacks, defending player may have you draw a card. If they do, untap this creature and remove it from combat."
Scourge of the Throne 86%
$0.39#1277
"Whenever this creature attacks for the first time each turn, if it's attacking the player with the most life or tied for most life, untap all attacking creatures. After this phase, there is an additional combat phase."
Jangling Automaton 86%
$0.11#21680
"Whenever this creature attacks, untap all creatures defending player controls."
Copperhorn Scout 85%
$0.27#5520
"Whenever this creature attacks, untap each other creature you control."
Melee 85%
$0.33#28941
"Whenever a creature attacks and isn't blocked this combat, untap it and remove it from combat."
Apes of Rath 84%
$0.28#25240
"Whenever this creature attacks, it doesn't untap during its controller's next untap step."
Lead Golem 84%
$0.13#31565
"Whenever this creature attacks, it doesn't untap during its controller's next untap step."
Hexplate Wallbreaker 84%
$7.69#3483
"Whenever equipped creature attacks, if it's the first combat phase of the turn, untap each attacking creature. After this phase, there is an additional combat phase."
Genji Glove 84%
$8.58#1233
"Whenever equipped creature attacks, if it's the first combat phase of the turn, untap it. After this phase, there is an additional combat phase."
Stitcher's Graft 84%
$0.16#21515
"Whenever equipped creature attacks, it doesn't untap during its controller's next untap step."
S.H.I.E.L.D. Spy Kit 84%
$0.19#22396
"Whenever equipped creature attacks alone, untap it and scry 1."