Sloth

Non-Sin creatures you control can't attack and
their activated abilities can't be activated.
At the beginning of each upkeep, put an idle
counter on Sloth. You create X 0/1 green insect creature tokens with flying and "this creature can't
be sacrificed" and gain twice X life, where X is the number of idle counters on Sloth.
The embodiment of phlegmatic lethargy.