Both of these decks have some good cards, but also some bad ones
Every time a new MTG set is released, Wizards of the Coast produces a range of different products containing the new cards, in different configurations, for various types of players
With the ability to prevent players from being attacked, Arboria can be an incredible stalling tactic
Because of the prowess triggers in the deck, sandbagging Gitaxian Probes until multiple Monastery Swiftspears and/or Stormchaser Mages are on the battlefield is a regular angle of attack
When any source deals damage to you or a permanent you control, they will lose two life unless they can pay one generic mana
I dont currently have a +1/+1 counter-themed deck that this would nicely fit into