Talk:Dragon Knight, Hijikata/@comment-10794218-20141218025619/@comment-4764137-20141218084951

Dragoanthem is required to declare its attack on the center... Note the word "declare"? It isn't allowed to declare an attack on Demongodol Ark because Demongodol ark states that everything must attack it as long as it's on the field. Dragoanthem can't because it can't declare an attack on the left or right. Quick Summon summons a monster, then CHANGES THE ATTACK TARGET. This is important, as it bypasses Dragoanthem's restriction. Dragoanthem didn't declare an attack on the left or right, it was redirected there. I.E. passive (Demongodol Ark) vs. active (Quick Summon) changes.

As for Devil Advantage, Daiyusha is correct. Due to the points that separate the cast cost and the resolution effect, they are resolved in order. Because of this, "[Cast Cost] Pay 1 gauge." is resolved, THEN the effect to add two 72 Pillars to your hand is resolved after the board change because of the way the card is written.

tl;dr Bushi is actually really good about consistent rulings based on their card text and the rules accompanying them... Buddyfight was clearly rushed into production, but they're trying to be as consistent as they can, and they aren't just throwing out whatever rulings they feel like at the time.