Bug Kenrith, king return ability
I was playing vs Kenrith the Returned King and my opponent activated the green ability that adds counters. I had an instant to respond, Aerial Boost, had enough mana, and even creatures to convoke, and plenty creatures to target. We were in the block phase, and when my opponent activated the ability, the game didn't give me priority to respond, so I couldn't use the instant I had, and therefore lost my blocker. I went on playing, and the opponent activated Kenrith's black ability, the one that reanimates, and I received priority for that. Then he activated at the end of my turn the green one again, and one again I coulnd't respond, even though I still had my Aerial Boost. It made me lose my last game of a premier draft I was playing.
I 'm attaching the two logs just in case.
Thank you,
Franco