Bloodweaving Dagger

Whenever you pay life, put a +1/+1 counter on equipped creature.
{3}, Remove three +1/+1 counters from equipped creature: Create a Blood token. You gain 3 life
for each Blood token you control. (It's an artifact
with ''{1}, {t}, Discard a card, Sacrifice this artifact:
Draw a card.'')
Equip—Pay 3 life