Last year, the Jund deck headed by Lord Windgrace scored a 17, making it the all-time worst Commander deck since we started the "ranking the decks" series a few years ago, and it looks like Lord Windgrace's record will stand for at least another year
Hybrid mana symbols, monocolored hybrid mana symbols, and Phyrexian mana symbols do count toward your devotion to their color(s)
Apple of Eden, Isu Relic Our highest scoring permanent, artifact, historic card and legendary is this four-drop that taps for no mana, just a loss of four life at sorcery speed and this self-sacs
But why stop with drawing a few cards
It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, or so on
Commander players that love graveyard shenanigans will also go ultimately crazy here