Klunk, Compulsive Gambler

Whenever you win a coin flip, create a 1/1
colorless servo creature token
{u}{r}: Flip a coin. If you win the flip, make a
token copy of target artifact you control. If you
lose the flip, target opponent makes a token copy
of up to one target permanent they
control. Tokens made by this ability have
"sacrifice this permanent at the beginning of the
next end step."