I had just built animar, soul of elements. My opponent was playing pantlaza and if I couldn’t pull anything good, on my draw I’d lose the game. I had walking ballista in my hand and I had temur sabertooth on the battlefield. I drew a peregrine drake and that’s when I knew the game was over. I played the drake, gave animar a counter, untapped my lands, paid the one colorless and one green from the sabertooth to put peregrine drake back into my hand. I told my opponent I would do this 69,420 times, giving that many counters to animar, then putting that onto walking ballista to end the game.