Hexplate Wallbreaker {3}{R}{R}
Artifact — Equipment
For Mirrodin! (When this Equipment enters, create a 2/2 red Rebel creature token, then attach this to it.)
Equipped creature gets +2/+2.
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.
Equip {3}{R}
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Cards that do something similar expected a card that isn't here?
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Genji Glove 100%
$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."
+1 more matching line
Stitcher's Graft 97%
$0.16#21515
"Whenever equipped creature attacks, it doesn't untap during its controller's next untap step."
+1 more matching line
S.H.I.E.L.D. Spy Kit 96%
$0.19#22396
"Whenever equipped creature attacks alone, untap it and scry 1."
+1 more matching line
Melee 89%
$0.33#28941
"Whenever a creature attacks and isn't blocked this combat, untap it and remove it from combat."
Finest Hour 88%
$1.17#8384
"Whenever a creature you control attacks alone, if it's the first combat phase of the turn, untap that creature. After this phase, there is an additional combat phase."
Sting, the Glinting Dagger 88%
$3.09#1600
"At the beginning of each combat, untap equipped creature."
+1 more matching line
Mobile Garrison 87%
$0.30#10467
"Whenever this Vehicle attacks, untap another target artifact or creature you control."
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."
Hellkite Charger 86%
$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."