Boromir, Warden of the Tower 
Legendary Creature — Human Soldier
$6.61 #851 0.60 3.2 years
Vigilance
Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell.
Sacrifice Boromir: Creatures you control gain indestructible until end of turn. The Ring tempts you.
Click a line or tag to filter
Cards similar to Boromir, Warden of the Tower expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Vexing Bauble92%
$2.17↓#1304↓0.512.2 years
"Whenever a player casts a spell, if no mana was spent to cast it, counter that spell."
Lavinia, Azorius Renegade90%
$0.18↓#3183↓0.91↑7.6 years↑
"Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell."
Void Mirror89%
$0.37↓#15611↓1.00↑5.3 years↑
"Whenever a player casts a spell, if no colored mana was spent to cast it, counter that spell."
Stalwart Pathlighter83%
$0.29↓#11703↓0.06↓4.9 years↑
"Vigilance"
Selfless Spirit80%
$0.41↓#595↑0.26↓10.1 years↑
"Sacrifice this creature: Creatures you control gain indestructible until end of turn."
Dauntless Escort80%
$0.15↓#8021↓0.10↓17.3 years↑
"Sacrifice this creature: Creatures you control gain indestructible until end of turn."
Rangers of Ithilien78%
$0.26↓#15959↓0.32↓3.2 years
"Vigilance"
Ice Cave78%
$0.77↓#21126↓0.92↑25.3 years↑
"Whenever a player casts a spell, any other player may pay that spell's mana cost. If a player does, counter the spell."
Planar Chaos76%
$2.31↓#7147↓1.41↑24.3 years↑
"Whenever a player casts a spell, that player flips a coin. If they lose the flip, counter that spell."
Lunar Force75%
$0.25↓#21116↓0.22↓10.1 years↑
"When an opponent casts a spell, sacrifice this enchantment and counter that spell."
Guardian of Faith75%
$0.60↓#1937↓0.33↓5.1 years↑
"Vigilance"
Hajar, Loyal Bodyguard74%
$0.64↓#4653↓0.23↓3.8 years
"Sacrifice this card: Legendary creatures you control get +1/+0 and gain indestructible until end of turn."
Counterbalance74%
$2.58↓#3290↓1.01↑20.1 years↑
"Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card."
Selfless Savior74%
$0.42↓#3051↓0.18↓6.2 years↑
"Sacrifice this creature: Another target creature you control gains indestructible until end of turn."
Chancellor of the Annex74%
$2.86↓#10169↓0.80↑15.3 years↑
"Whenever an opponent casts a spell, counter it unless that player pays 
."
."
Frodo, Adventurous Hobbit74%
$0.30↓#4781↓0.42↓3.2 years
"Vigilance"
Spectacular Spider-Man73%
$7.79↑#3253↓0.531.0 years↓
", Sacrifice this card: Creatures you control gain hexproof and indestructible until end of turn."
, Sacrifice this card: Creatures you control gain hexproof and indestructible until end of turn."
Nix73%
$0.97↓#25501↓0.24↓19.3 years↑
"Counter target spell if no mana was spent to cast it."
Resolute Watchdog72%
$0.31↓#8252↓0.29↓7.6 years↑
", Sacrifice this creature: Target creature you control gains indestructible until end of turn."
, Sacrifice this creature: Target creature you control gains indestructible until end of turn."
Decree of Silence72%
$29.75↑#11514↓1.15↑23.3 years↑
"Whenever an opponent casts a spell, counter that spell and put a depletion counter on this enchantment. If there are three or more depletion counters on this enchantment, sacrifice it."