First of all you can use this combo when your opponent has powerful monsters ,traps or spells cards that can be a threat to you on their field.
For this to work you need to have spore and dandylion in your grave and debris dragon in your hand.
First summon debris dragon and use its effect to summon dandy.Synchro summon Black rose dragon and destroy all cards on the field.You will then get 2 token because BRD effect resolves first.Then use spore effect to remove dandy from grave.
You will have 2 level 1 token and 1 level 4 tuner.You will then be able to synchro a powerful level 6 synchro like Goyo guardian and atk directly.
Note:If you had Another dandy on the field just before Black rose or Foolish burial in your hand,You will be able to summon a level 8 synchro with the two additional token you got.

It's not that special combo. This come my mind during duel by high possibilty. However thank you still.