Arena Trickster 
Creature — Human Shaman
$0.05 #27887 0.07 6.7 years
Whenever you cast your first spell during each opponent's turn, put a +1/+1 counter on this creature.
Click a line or tag to filter
Cards similar to Arena Trickster 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.
Brineborn Cutthroat98%
$0.17↑#10386↑0.127.3 years
"Whenever you cast a spell during an opponent's turn, put a +1/+1 counter on this creature."
Wavebreak Hippocamp84%
$0.61↑#2440↑0.27↑6.7 years
"Whenever you cast your first spell during each opponent's turn, draw a card."
Katara, Waterbending Master84%
$7.94↑#6163↑0.89↑0.9 years↓
"Whenever you cast a spell during an opponent's turn, you get an experience counter."
Satyr Hoplite80%
$0.13↑#21251↑0.0712.5 years↑
"Whenever you cast a spell that targets this creature, put a +1/+1 counter on this creature."
Setessan Oathsworn80%
$0.16↑#238890.1112.7 years↑
"Whenever you cast a spell that targets this creature, put two +1/+1 counters on this creature."
Pheres-Band Thunderhoof80%
$0.13↑#295460.0712.5 years↑
"Whenever you cast a spell that targets this creature, put two +1/+1 counters on this creature."
Staunch-Hearted Warrior80%
$0.03↓#283630.0013.1 years↑
"Whenever you cast a spell that targets this creature, put two +1/+1 counters on this creature."
Centaur Battlemaster80%
$0.07↑#265660.0613.1 years↑
"Whenever you cast a spell that targets this creature, put three +1/+1 counters on this creature."
Lagonna-Band Trailblazer80%
$0.12↑#21221↑0.0612.5 years↑
"Whenever you cast a spell that targets this creature, put a +1/+1 counter on it."
Fabled Hero80%
$0.29↑#19015↑0.0013.1 years↑
"Whenever you cast a spell that targets this creature, put a +1/+1 counter on it."
War-Wing Siren80%
$0.06↑#282510.0012.5 years↑
"Whenever you cast a spell that targets this creature, put a +1/+1 counter on this creature."
Akroan Skyguard80%
$0.13↑#19676↑0.0012.7 years↑
"Whenever you cast a spell that targets this creature, put a +1/+1 counter on this creature."
Thunder Drake80%
$0.10↑#21133↑0.067.5 years
"Whenever you cast your second spell each turn, put a +1/+1 counter on this creature."
Illvoi Operative80%
$0.11↑#19719↑0.001.2 years↓
"Whenever you cast your second spell each turn, put a +1/+1 counter on this creature."
Boar-q-pine80%
$0.10↑#14720↑0.000.9 years↓
"Whenever you cast a noncreature spell, put a +1/+1 counter on this creature."
Dawnbringer Charioteers79%
$0.26↑#225640.0012.5 years↑
"Whenever you cast a spell that targets this creature, put a +1/+1 counter on this creature."
Mage Tower Referee79%
$0.11↑#236260.010.5 years↓
"Whenever you cast a multicolored spell, put a +1/+1 counter on this creature."
Ascendant Packleader78%
$0.32↑#8160↑0.154.9 years↓
"Whenever you cast a spell with mana value 4 or greater, put a +1/+1 counter on this creature."
Lurking Lizards78%
$0.13↑#18797↑0.001.1 years↓
"Whenever you cast a spell with mana value 4 or greater, put a +1/+1 counter on this creature."
Blessed Spirits78%
$0.13↑#21006↑0.1511.3 years↑
"Whenever you cast an enchantment spell, put a +1/+1 counter on this creature."