whilst playing a match during a BRO draft, I had Fallaji Chaindancer on board. I was unable to activate it's double strike ability, I just was not given the option at any phase in response so I could block and give my creature double strike. I also had Penregron Strongbull and a powerstone on board. I was unable to active his ability also to give him +1+1 by sacrificing the powerstone. This put me at a disadvantage and I was unable to effectively use these creatures. I paid 10,000 coins for the event