Which unit rolled the most dice in 10th?

[Valkyrion]

Either bona-fide strategy or unlikely one off - which single unit could roll the most dice in 10th edition? 

Probably need at least a minor restriction - I'm talking about attack dice, so combined number of dice involving To Hit, To Wound and accompanying rerolls. 

 

I didn't play a single game, so this is simply curiosity, but think I remember a 30 strong swarm of Termagants with the right psychic powers/stratagems/hive fleet rolling over 300 dice in 9th edition. 

[grailkeeper]

Statistically most likely to be the most used unit which is probably tactical mari es or intercessors.

[Valkyrion]

No, sorry, I mean a single unit - so not intercessors in general, but like *your* intercessors that used a variety of strats or skills in order to roll hundreds of dice.