some item drops such as blaze rods are too easy to find and undermine the vanilla aspects of the game.

A suggestion would be to lower the drop rate of important items from pokemobs such as blaze rods.

blaze rods are one of the easiest items to farm in vanilla minecraft... they are easier to get there than in pokecube.

Step 1: kill 1 blaze, get rod
Step 2: make fire resistance potion
Step 3: kill blazes till potion runs out, get lots more blaze rods

this does require slime, but those are pretty common as well