(In fact, token cards have various effective rarities, but for card code purposes they are listed as a single rarity.) Yes, currently in Magic card codes there are seven options for the rarity field: C Common U Uncommon R Rare M Mythic Rare L Land (This refers only to basic lands
The setup cost here is that you need to cast another spell beforehand, so you arent casting this when you have just 5 mana available
A transforming double-faced card enters the battlefield with its front face up by default, unless a spell or ability instructs you to put it onto the battlefield transformed or you cast it transformed, in which case it enters with its back face up
If you arent playing Pawpsicle in Sapphire youre probably missing out
So, if you have Drudge Skeletons in play, you can save it from removal as many times as you have black mana available