Artifacts are difficult to destroy, so it usually sticks on board, dissuading opponents from playing future threats
Blue is the most common control color (and the color of permission spells), but not all control decks are blue
In these circumstances, these fast-racing riders gain the ability to special summon themselves from your hand, on top of their effects when summoned and on the field
In practice, retreat in Pokmon TCG means moving your Pokmon around on the playing field from a more exposed, but offensive position, to the relatively protected, passive bench position
No, it doesn't (unless you're tied for most life)
Another angle of attack from most Arclight Phoenix decks is Thing in the Ice, which can flip on turn 3