Arillai, Angel of Wrath

Flying, menace, haste
Whenever you lose life for the first time each
turn, you get an experience counter.
At the beginning of combat on your turn, create
X 3/1 Red and White human warrior creature
tokens with trample and haste, where X is equal
to the number of experience counters you have.
exile those tokens at the beginning of the next
end step.