Although the tokens are attacking, they were never declared as attacking creatures (for the purposes of abilities that trigger whenever a creature attacks, for example).
13-07-2018
wotc
You choose which players or planeswalkers the two tokens are attacking. They don’t have to be attacking the same player or planeswalker that Leonin Warleader is attacking, and they can each be attacking different players and/or planeswalkers.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.