Being able to flash in Interceptor, bounce a spell, loot, and possibly pump Obscura Interceptor is a lot for a single spell to do
Large Templating Changes Chaos Ensues Each plane card with a chaos ability is receiving an update to its rules text to use the new "whenever chaos ensues" triggered ability rather than the previous "whenever you roll [CHAOS]" triggered ability
You dont have to be a finance expert to see that Magic is, always has been, and always will be an expensive game
Allowing someone to double up their ETB triggers off cards like Duplicant or Archon of Cruelty can quickly cut the current archenemy out of the lead
The gameplay is where the returning format will impact the most
Then, in Return to Ravnica , Deathrite Shaman was unceremoniously spoiled in the big spoiler dump on the last day of preview season