Drop rate list for the tongue lashing pvp tokens don’t show any 4*! Just a display bug or are they actually broken?
The crappy part is that even though the debut character is the only 4* in the mix, the odds of pulling them are lower than the chances of a 4* in other event or Heroic tokens.
While it’s true that the 4.8% chance of Venom is lower than the 6.6% chance of a random 4* in heroic tokens, it’s a considerable increase over the normal .3% for a specific character.
So yes, you “lose” 1.8% total, but gain 4.5% for Venom.