Light of Promise 
Enchantment — Aura
$0.41 #4457 0.29 6.3 years
Enchant creature
Enchanted creature has "Whenever you gain life, put that many +1/+1 counters on this creature."
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Cards similar to Light of Promise expected a card that isn't here?
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Sunbond100%
$0.48↑#8708↓0.18↓12.7 years↑
"Enchanted creature has "Whenever you gain life, put that many +1/+1 counters on this creature.""
Ageless Entity88%
$0.28↓#14767↓0.2122.7 years↑
"Whenever you gain life, put that many +1/+1 counters on this creature."
Cradle of Vitality86%
$0.52↑#12591↓0.18↓18.0 years↑
"Whenever you gain life, you may pay 
. If you do, put a +1/+1 counter on target creature for each 1 life you gained."
. If you do, put a +1/+1 counter on target creature for each 1 life you gained."
Nykthos Paragon84%
$0.59↑#2872↑0.235.5 years
"Whenever you gain life, you may put that many +1/+1 counters on each creature you control. Do this only once each turn."
Forced Adaptation75%
$0.14↓#8490↓0.00↓13.7 years↑
"At the beginning of your upkeep, put a +1/+1 counter on enchanted creature."
Serene Steward75%
$0.09↓#19687↓0.00↓11.0 years↑
"Whenever you gain life, you may pay . If you do, put a +1/+1 counter on target creature."
. If you do, put a +1/+1 counter on target creature."
Tigra, Feline Fury74%
$0.19↓#17069↓0.18↓0.3 years↓
"Whenever you gain life, put a +1/+1 counter on this card."
MJ, Rising Star74%
$0.23↓#15593↓0.301.1 years↓
"Whenever you gain life, put a +1/+1 counter on this card."
Celestial Unicorn74%
$0.19↓#9265↓0.325.2 years↓
"Whenever you gain life, put a +1/+1 counter on this creature."
Pest Mascot74%
$0.16↓#9176↓0.09↓0.5 years↓
"Whenever you gain life, put a +1/+1 counter on this creature."
Bloodbond Vampire74%
$0.25↓#13658↓0.12↓11.0 years↑
"Whenever you gain life, put a +1/+1 counter on this creature."
Scion of the Swarm74%
$0.11↓#17496↓0.00↓6.1 years
"Whenever you gain life, put a +1/+1 counter on this creature."
Bloodthirsty Aerialist74%
$0.18↓#6835↓0.07↓7.3 years
"Whenever you gain life, put a +1/+1 counter on this creature."
Blood Researcher74%
$0.17↓#16369↓0.355.5 years
"Whenever you gain life, put a +1/+1 counter on this creature."
Heliod, Sun-Crowned72%
$19.11↑#1011↑0.87↑6.7 years
"Whenever you gain life, put a +1/+1 counter on target creature or enchantment you control."
Exemplar of Light70%
$0.91↑#1124↑0.321.9 years↓
"Whenever you gain life, put a +1/+1 counter on this creature."
Archangel of Thune70%
$17.99↑#1284↑0.59↑13.3 years↑
"Whenever you gain life, put a +1/+1 counter on each creature you control."