Please Disallow Arena Reprints in Ranked Modes
It is highly frustrating to play against the arena starter decks even into the higher tiers of ranked modes. It warps the metagame and stifles deckbuilding as players just continue to play the same decks they've used for the past three years because of the reprints. Just after the release of Zendikar Rising there was such a surge of variety in decks such as orzhov lifegain that has disappeared in favor of just using the arena reprints.
Ajani's Pridemate should have rotated out with the Ravnica sets, it's so tiring to see Hallowed Priest outshining Cleric of Life's Blood, or Malakir Cullblade taking the spotlight off of Torbraz.
I feel like this is a problem that will only get worst with each rotation as the synergy between the new arena reprint cards grows until the point that there are decks that only use the Arena-specific cards and it warps the ranked metagame further and further away from paper, drawing attention away from the cards of new sets and invaliding the need for wildcards to make competitive decks.