Old-Fashioned Collector

Bloodborne (When this creature enters the battlefield
you may exile another creature you control. If a
creature card with first strike is exiled this way, this creature gains first strike. The same is true for deathtouch, haste, lifelink, and menace.)
Whenever Old-Fashioned Collector deals combat damage to a player, create X colorless Treasure artifact tokens, where X is the exiled creature's
power. They have "{t}, Sacrifice this artifact: Add
one mana of any color."