Guardian of Solitude 
Creature — Spirit
$0.20 #27233 0.42 21.9 years
Whenever you cast a Spirit or Arcane spell, target creature gains flying until end of turn.
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Cards similar to Guardian of Solitude expected a card that isn't here?
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Kami of the Waning Moon90%
$0.12↓#225940.25↓21.9 years
"Whenever you cast a Spirit or Arcane spell, target creature gains fear until end of turn."
Oyobi, Who Split the Heavens90%
$0.29↑#12602↑0.15↓21.6 years
"Whenever you cast a Spirit or Arcane spell, create a 3/3 white Spirit creature token with flying."
Kami of Fire's Roar89%
$0.09↓#270200.11↓21.9 years
"Whenever you cast a Spirit or Arcane spell, target creature can't block this turn."
Briarknit Kami89%
$0.12↓#229130.25↓21.3 years
"Whenever you cast a Spirit or Arcane spell, put a +1/+1 counter on target creature."
Kami of Tattered Shoji88%
$0.21↑#308700.25↓21.6 years
"Whenever you cast a Spirit or Arcane spell, this creature gains flying until end of turn."
Horizon Seed87%
$0.22↑#268060.00↓21.9 years
"Whenever you cast a Spirit or Arcane spell, regenerate target creature."
Soilshaper86%
$0.16↓#288100.07↓21.9 years
"Whenever you cast a Spirit or Arcane spell, target land becomes a 3/3 creature until end of turn. It's still a land."
Skyfire Kirin86%
$0.48↑#223900.81↑21.3 years
"Whenever you cast a Spirit or Arcane spell, you may gain control of target creature with that spell's mana value until end of turn."
Kami of the Hunt86%
$0.09↓#280300.25↓21.9 years
"Whenever you cast a Spirit or Arcane spell, this creature gets +1/+1 until end of turn."
Scaled Hulk86%
$0.19↓#304450.27↓21.6 years
"Whenever you cast a Spirit or Arcane spell, this creature gets +2/+2 until end of turn."
Jade Idol85%
$0.17↓#304410.29↓21.9 years
"Whenever you cast a Spirit or Arcane spell, this artifact becomes a 4/4 Spirit artifact creature until end of turn."
Fiddlehead Kami84%
$0.13↓#300360.00↓21.3 years
"Whenever you cast a Spirit or Arcane spell, regenerate this creature."
Soul of Magma84%
$0.10↓#283080.3321.9 years
"Whenever you cast a Spirit or Arcane spell, this creature deals 1 damage to target creature."
Budoka Pupil // Ichiga, Who Topples Oaks82%
$0.10↓#285420.25↓21.6 years
"Whenever you cast a Spirit or Arcane spell, you may put a ki counter on this creature."
Kodama of the South Tree82%
$0.75↑#19074↑0.22↓21.9 years
"Whenever you cast a Spirit or Arcane spell, each other creature you control gets +1/+1 and gains trample until end of turn."
Innocence Kami82%
$0.19↓#293770.07↓21.9 years
"Whenever you cast a Spirit or Arcane spell, untap this creature."
Sire of the Storm82%
$0.09↓#16438↑0.4221.9 years
"Whenever you cast a Spirit or Arcane spell, you may draw a card."
Blademane Baku81%
$0.18↓#277610.31↓21.6 years
"Whenever you cast a Spirit or Arcane spell, you may put a ki counter on this creature."
Bounteous Kirin81%
$0.40↑#19498↑0.25↓21.3 years
"Whenever you cast a Spirit or Arcane spell, you may gain life equal to that spell's mana value."
Teller of Tales80%
$0.11↓#258900.14↓21.9 years
"Whenever you cast a Spirit or Arcane spell, you may tap or untap target creature."