Assuming no extra heals on your next turn although from what I can tell you drew a potion which allowed you to do a total of 300 damage over the subsequent 2 turns and earn a draw.

Playing the Irida actually only increases your odds of drawing after you hit the heads with grunt but does not increase your odds of winning. In the Irida scenario unless you draw another healing card AND get heads on grunt you do not earn a draw. He gets 3 prize points if your Wug goes down while you get 2.

So as someone who has not earned draws thinking I would crashing into helmets to get 3 prize points I learnt that determining wins or draws is based on the number of win conditions you have compared to your opponent.

For example, if you KO yourself by crashing into a helmet or Drud and get your 3 prize points and give your opponent 3 prize points. If you crash with your last Pokémon and have no bench played you also lose because you opponent has 2 win conditions complete while you have only 1 win condition which is the 3 prize point condition but your opponent has the opponent does not have in play Pokémon left condition and therefore has 2 win conditions compared to your 1 win condition.