As a zero mana spell that is instant you can do a lot of things your opponent wasn't accounting for, perhaps it is just for fixing, they assumed you couldn't play a Cryptic Command due to lack of triple blue but the Search sorts it out etc
The number of support cards is here for exactly that reason, as it will be better to use the cards you have wisely rather than have many to choose from
Obviously, if we can get multiple tokens from our spells we'll be in better shape, but even if we only have a single token we can begin populating it with Trostani
Crystals are usually depicted as being sentient and will even be able to speak with the user, in a gameplay technique that allows the narrative to continue moving forward
Higher because it has a strong creature base that synergizes well, but not the best since it has a lot of early creatures that just dont synergize with the theme
It is based on the control of a majority of creatures and does not trigger a reaction on its own