Blood Petal Celebrant 

Creature — Vampire
This creature has first strike as long as it's attacking.
When this creature dies, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this token: Draw a card.")
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Cards that do something similar expected a card that isn't here?
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Voldaren Bloodcaster // Bloodbat Summoner 91%
$0.36#6709
"Whenever this creature or another nontoken creature you control dies, create a Blood token."
Markov Enforcer 91%
$0.37#8653
"Whenever a creature dealt damage by this creature this turn dies, create a Blood token."
Hobgoblin Captain 87%
$0.13#19164
"Whenever this creature attacks, if you attacked with creatures with total power 6 or greater this combat, this creature gains first strike until end of turn."
Ratcatcher Trainee // Pest Problem 86%
$0.24#15657
"During your turn, this creature has first strike."