Master Warcraft 
Instant
$0.61 #5406 0.43 20.9 years
Cast this spell only before attackers are declared.
You choose which creatures attack this turn.
You choose which creatures block this turn and how those creatures block.
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Berserker's Frenzy78%
$1.85↑#7077↓0.18↓5.1 years↓
"You choose which creatures block this turn and how those creatures block."
+2 more matching lines
Dueling Grounds78%
$7.71↑#12138↓1.16↑25.9 years↑
"No more than one creature can block each combat."
+1 more matching line
Eunuchs' Intrigues75%
$7.95↑#30650↓0.73↑27.3 years↑
"Target opponent chooses a creature they control. Other creatures they control can't block this turn."
Goblin War Cry75%
$4.91↑#26739↓0.16↓28.2 years↑
"Target opponent chooses a creature they control. Other creatures they control can't block this turn."
Camouflage74%
$9.48↑#26025↓0.56↑33.1 years↑
"Cast this spell only during your declare attackers step."
+1 more matching line
Balduvian Warlord74%
$0.15↓#24556↓0.07↓20.1 years
"
: Remove target blocking creature from combat. Creatures it was blocking that hadn't become blocked by another creature this combat become unblocked, then it blocks an attacking creature of your choice. Activate only during the declare blockers step."
: Remove target blocking creature from combat. Creatures it was blocking that hadn't become blocked by another creature this combat become unblocked, then it blocks an attacking creature of your choice. Activate only during the declare blockers step."
Melee74%
$0.28↓#29257↓0.19↓31.3 years↑
"You choose which creatures block this combat and how those creatures block."
+1 more matching line
Silent Arbiter74%
$10.55↑#1162↑1.18↑22.3 years↑
"No more than one creature can block each combat."
+1 more matching line
Invasion Plans72%
$1.41↑#13276↓1.47↑28.5 years↑
"The attacking player chooses how each creature blocks each combat."
Festival72%
$0.43↓#23765↓0.4732.1 years↑
"Cast this spell only during an opponent's upkeep."
+1 more matching line
Caverns of Despair72%
$111.84↑#20999↓0.3332.3 years↑
"No more than two creatures can block each combat."
+1 more matching line
General Jarkeld72%
$1.15↑#26416↓0.00↓31.3 years↑
": Choose two target blocked attacking creatures. If each of those creatures could be blocked by all creatures that the other is blocked by, each creature that's blocking exactly one of those attacking creatures stops blocking it and is blocking the other attacking creature. Activate only during the declare blockers step."
: Choose two target blocked attacking creatures. If each of those creatures could be blocked by all creatures that the other is blocked by, each creature that's blocking exactly one of those attacking creatures stops blocking it and is blocking the other attacking creature. Activate only during the declare blockers step."
Windshaper Planetar71%
$0.26↓#11347↓0.73↑4.2 years↓
"When this creature enters during the declare attackers step, for each attacking creature, you may reselect which player or permanent that creature is attacking."
Portal Manipulator71%
$1.38↑#14407↓0.80↑2.5 years↓
"When this creature enters during the declare attackers step, choose target player and any number of target attacking creatures their opponents control. Those creatures are now attacking that player."
Taunt from the Rampart71%
$0.47↓#2024↑0.55↑3.2 years↓
"Goad all creatures your opponents control. Until your next turn, those creatures can't block."
Crawlspace70%
$7.83↑#1411↑0.77↑27.6 years↑
"No more than two creatures can attack you each combat."