Many Commander players and cube designers also use double-sided cards for token systems, upgraded creatures, alternate commanders, and custom mechanics where gameplay changes dynamically during matches
Its got a lot of good words on it for a 1-drop, and it saw some play there, if nowhere else
Others are just whispers and rumors: mysterious Pokmon such as Keldeo, Shining Jirachi, Shining Volcanionand many more
Note the different frame shape at the top
your ability to play through handtrap is really hard to quantify as the easy answer would be 33% (odds of opening Called by and/or crossout) but the truth is that depending on you hand this deck can play through a lot and more often than the other handtrap and Cowrie + Wing version due to its low brick count (no Heel, no Roost and no RUMs besides the strict minimum) but the gains are really hard to map out as it depends which bird you open and which handtrap your opponent opens
Elite Fourum How rare is the 1999-2000 Base Set