Most tokens don't have a mana cost (though see below), so a token that ends up in your hand can't be cast unless you find a way to cast it without paying its mana cost
If you can actually cast Voice of Victory on turn 2 and back it up with a supporting aggressive draw, then youve capitalized on an overpowered card just like the Jeskai Revelation player has
The one saving grace is, if you have no cards, then Cackling Flames instead deals five damage instead
Do that for a couple turns and your opponents will be buried in card advantage
Gev helps keep the pressure on opponents with several abilities that support aggressive playstyles, and it's also a rare typing, with both Lizards and Mercenaries among the rarest subtypes in Magic: The Gathering (at least prior to the last few sets)
Not only is it often quite a lot of damage to the dome as a finisher it is also a pretty solid answer to the various token generating planeswalkers