Mammoth Umbra {4}{W}
Enchantment — Aura
Enchant creature
Enchanted creature gets +3/+3 and has vigilance.
Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)
click a line to search just that ability, click more to combine them
Cards that do something similar 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.
Dragon Scales 94%
$0.13#22553
"Enchanted creature gets +1/+2 and has vigilance."
+1 more matching line
Radiant Grace // Radiant Restraints 93%
$0.20#12645
"Enchanted creature gets +1/+0 and has vigilance."
+1 more matching line
Sentinel's Eyes 93%
$0.25#6523
"Enchanted creature gets +1/+1 and has vigilance."
+1 more matching line
Knightly Valor 87%
$0.18#14605
"Enchanted creature gets +2/+2 and has vigilance."
+1 more matching line
Howl of the Hunt 87%
$0.22#15217
"Enchanted creature gets +2/+2 and has vigilance."
+1 more matching line
Marked by Honor 87%
$0.06#22228
"Enchanted creature gets +2/+2 and has vigilance."
+1 more matching line