With an average price of $231.33 , thats definitely something to think about
You can, for instance, transform Mimeoplasm into Invisible Stalker to make it unblockable, attack, then transform it into Terisian Mindbreaker to give it some extra, half-the-deck-milling oomph as it slams into your opponent, then transform it into Seedborn Muse to untap it, then transform it into Ulamogs Dreadsire to pop out a 10/10 for giggles
Lets take a look at each levels power: Level One In a flavor win, you want your Ring-bearer to be small with low power in order to sneak past blockers, which has Halflings written all over it
Flanking means "Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn." If a creature gains flanking during combat, that has no effect on any creature already blocking it
I fully expected Lord of the Rings to be more mainstream than Dungeons and Dragons and the data supports this hypothesis