This burn spell punishes opponents severely for playing anything other than basic lands, dealing two damage to them per nonbasic land they control
You choose whether each token is attacking that opponent or a planeswalker they control as those tokens enter the battlefield
For example, a sorcery spell that says "Target creature you control deals damage equal to its power to any target" wouldn't cause Bloodfeather Phoenix's ability to trigger even if an opponent or battle was dealt damage, as it's the creature dealing the damage, not the spell
If your text is sitting on a bright or busy background, its going to suffer
8 Aristocrats All For The Greater Good, Of Course Named for the powerful Falkenrath and Cartel Aristocrats from Dark Ascension and Gatecrash, respectively, Aristocrats is an archetype all about sacrificing creatures for value