And if you aren't able to make it to Gen Con, don't worry
This week, set five, Shimmering Skies, is set to release
By doing so, though the auto ability for Rydia [15-083L] entering your field wont activate for herself, it will activate for the other Category IV Characters that enter your field
Each has a real trade-off profile there is no universally best answer, only a best fit for your volume, language ability, and risk tolerance
Six additional mana is a steep price to pay, but on top of the cost reduction and giving everything haste, theres a lot of people apparently willing to pay that price
Thats a nice combo with cards like Pariah that let your creatures take damage meant for you