While Kinsbaile Cavalier's ability potentially offers a lot of damage, the downside is that it's only a 2/2, so it dies to basically every removal spell in the format, which makes it easy for opponents to play around it by leaving up something like a Shock
What affects the value of Garland, Knight of Cornelia // Chaos, the Endless
Floodborn cards in particular present characters in such exciting new ways that those familiar with their original properties will really enjoy the spin on a well-known archetype
It doesn't copy whether that artifact is tapped or untapped, whether it has any counters on it or Auras attached to it, or any non-copy effects that have changed its types, color, or so on
Yes, you keep all the cards you draft in a Quick Draft