Bloodvial Purveyor {2}{B}{B}
Creature — Vampire
Flying, trample
Whenever an opponent casts a spell, that player creates a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this token: Draw a card.")
Whenever this creature attacks, it gets +1/+0 until end of turn for each Blood token defending player controls.
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Charging Griffin 86%
$0.08#23282
"Whenever this creature attacks, it gets +1/+1 until end of turn."
+1 more matching line
Reckless Pangolin 86%
$0.12#31018
"Whenever this creature attacks, it gets +1/+1 until end of turn."
Aurochs 85%
#29850
"Whenever this creature attacks, it gets +1/+0 until end of turn for each other attacking this card."
Septic Rats 85%
$0.39#10538
"Whenever this creature attacks, if defending player is poisoned, it gets +1/+1 until end of turn."
Angelic Captain 85%
$0.22#19570
"Whenever this creature attacks, it gets +1/+1 until end of turn for each other attacking Ally."
+1 more matching line
The Long Reach of Night // Animus of Night's Reach 84%
$0.22#11099
"Whenever this creature attacks, it gets +X/+0 until end of turn, where X is the number of creature cards in defending player's graveyard."
Impetuous Protege 84%
$0.19#27019
"Whenever this creature attacks, it gets +X/+0 until end of turn, where X is the greatest power among tapped creatures your opponents control."
Thrashing Frontliner 84%
$0.07#27823
"Whenever this creature attacks a battle, it gets +1/+1 until end of turn."
Cenn's Heir 84%
$0.15#19919
"Whenever this creature attacks, it gets +1/+1 until end of turn for each other attacking Kithkin."
Bull Aurochs 84%
$0.07#29855
"Whenever this creature attacks, it gets +1/+0 until end of turn for each other attacking Aurochs."
Rimehorn Aurochs 84%
$0.13#25135
"Whenever this creature attacks, it gets +1/+0 until end of turn for each other attacking Aurochs."
Aurochs Herd 84%
$0.07#30029
"Whenever this creature attacks, it gets +1/+0 until end of turn for each other attacking Aurochs."
Slimy Piper 84%
$0.28#19663
"Whenever this creature attacks, it gets +1/+1 until end of turn. If you control four or more creatures, it gets +2/+2 and gains indestructible until end of turn instead."