Ok so I was battling someguy on play TCG it was going well and this is like my 4th duel and I decidd to try out CMT deck which is based around celebii. So I had Tornadus in the active and I attached a DCE to it then I retreated to celebii to attacha grass energy to it from my hand with frost breath. I had Sky Arrow Bridge Up so I basically had a free retreat cost. I am aware that you can only retreat one time per turn. I was under the understanding that if you have a free retreat cost you may retreat as many times as you like? Is this true? So if you do not diiscard an energy to retreat. I wanted to retreat back to Tornadus after using celebi's ability.