You'll want to add her to a deck with other princesses since her abilities both enable and benefit from the abilities of other princess cards.
Many spells in your deck are very, very expensive, and if you want to build a similar version without the more expensive cards, there are some substitutes: Azlask, the Swelling Scourge, Ulalek, Fused Atrocity, and Eye of Ugin are vital inclusions in this deck, and two of these can be acquired with the precons
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The Blue clearly makes the populate mechanic better because you have better targets by virtue of Blue having the easiest time turning creatures into tokens, but I submit that Blue makes the rest of the deck better