Bhaisam Rhakha

Flash, Flying
When Bhaisam Rhakha enters the battlefield
create a 0/1 blue ferret creature token with
'{3}{t} copy target instant or sorcery spell. You may
choose new targets for the copy.' Instant & Sorcery spells cost {1} less to copy for every ferret you control.
Whenever you cast or copy an instant or sorcery spell
tap target permanent. It has no abilities and doesn't untap
during your opponents next upkeep.