Elvish Handservant 
Creature — Elf Warrior
$0.11 #30641 0.00 19.0 years
Whenever a player casts a Giant spell, you may put a +1/+1 counter on this creature.
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Cards similar to Elvish Handservant expected a card that isn't here?
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Managorger Hydra82%
$0.36↑#1022↑0.48↑11.3 years↓
"Whenever a player casts a spell, put a +1/+1 counter on this creature."
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"Whenever an opponent casts a spell, you may put a +1/+1 counter on this creature."
Titania's Chosen75%
$0.27↑#17453↑0.0628.0 years↑
"Whenever a player casts a green spell, put a +1/+1 counter on this creature."
Ishai, Ojutai Dragonspeaker74%
$3.68↑#4727↑0.56↑9.9 years↓
"Whenever an opponent casts a spell, put a +1/+1 counter on this card."
Forgotten Ancient73%
$0.34↑#390↑0.44↑23.4 years↑
"Whenever a player casts a spell, you may put a +1/+1 counter on this creature."
Sunscorch Regent73%
$0.31↑#1629↑0.36↑11.6 years↓
"Whenever an opponent casts a spell, put a +1/+1 counter on this creature and you gain 1 life."
Medusa, Inhuman Queen70%
$0.27↑#17923↑0.43↑0.3 years↓
"Whenever a player casts a noncreature spell, put a +1/+1 counter on this card."