So okay,
We already have got the Knockback II 'Mushroom' in the map "Mushrooms" which people don't really like because the Knockback is annoying, I do agree with those people, but when you've got the Knockback 'Mushroom' yourself it's pretty funny hihihi:rolleyes:. (Okay, in my mind than xD.)
Potions would be nice, but keep in mind that potions are OP, so don't make the prices (too) low. The prices are now 5 Diamonds for each potion, make them higher, the prices. The same counts for Knockback sticks, make the prices for those also higher because it's very OP.
I wouldn't do Knockback II sticks, because than actually you have (a sort of) 'free' kills, because with Knockback II you can punch people very far. I would say Knockback I (as the maximum Knockback) because than you still have a chance to win (I tthink).
I like the 'Speed 3' and 'Jump Boost 3' potions but I think the 'Instant Health 3' potion is a bit too OP, because when you buy 3/4 of those 'Instant Health 3' potions you can just go to every team, destroy their egg and eliminate the whole team and then you have already won the game. So no, that would be too OP. But I do like the 'Speed 3' and the 'Jump Boost 3' potion, that would be really funny.
So yeah, I like the idea. Except the Knockback II and the 'Instant Health 3' potion. Good suggestion!