Raving Dogmatist

Forecast - {1}{w}{w}, Reveal Raving Dogmatist from
your hand: If you control no artifact tokens
named Dogmatic Chalice, create an artifact
token named Dogmatic Chalice. Otherwise, put
a prayer counter on target artifact named
Dogmatic Chalice.
{2}{u}{u}, {t}: Detain X target creatures, where X
is the number of prayer counters on target
artifact you control named Dogmatic
Chalice.