There is no golden rule that we can tell partners, like "Oh, seventeen letters is the max," since English's alphabet has different widths depending on the letter (i.e., a card name with a bunch of i's might fit more letters)
In combination with it and Alucard any monster that is not a Token can be dealt with because even if a monster has a resilient effect, while face-down it can still be destroyed by anything
If Hour of Glory and Unsummon are showing up everywhere, then it's not nearly so wonderful
You can only use 1 "Machina Megaform" effect per turn, and only once that turn
Its expensive, its awkward, and its bad
These land cards will be a fantastic addition to any LotR fan's MTG deck, and they'll be a great thing to look at between turns -- as long as players don't get too distracted