Theres a lot of cheap removal for it right now, so its hard to build a deck that both consistently takes advantage of the acceleration while operating smoothly when it dies
Phelia, Exuberant Shepherd resets enters abilities and can temporarily remove blockers or problem permanents
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of The Darkness Crystal's first ability)
Firstly, you can get a trigger from Seifer the same turn you play it by attacking with a different creature, so thats already a good impact on the board
Zara, Renegade Recruiter recruits your opponents creatures, at least temporarily