Perhaps the most unique part of Tarkir: Dragonstorm is the Jeskai theme of turning anything into a token, which we see in everything from Shiko, Paragon of the Way to Taigam, Master Opportunist and Flamehold Grappler
However, as the player bringing Hokori to the party, you're able to plan accordingly, filling your deck with alternative means of creating mana, namely in the form of artifacts
The kicker here is that Delighted Halfling ensures that the legends you cast won't be countered, which makes it the perfect card for Commander, making sure that your Commander always goes out whenever you mean to, as long as this otherwise unassuming Halfling helps in casting it
If an ability required that creature's controller to attack rather than the creature itself (such as that of Trove of Temptation), that creature dealing combat damage won't cause Firkraag's last ability to trigger, even if it was the only creature that player could have attacked with to meet the requirement
A one mana hard counter has so much game swinging potential