As of their most recent 1v1 battle, Ian77 is running Giant Snowball, Knight, Cannon, Goblin Drill, Rocket, Bomber, Fire Spirit, Skeletons at 2.8 average elixir. It's read straight from their official battle log and refreshes periodically.
Yes — Ian77's player tag is verified against the official Clash Royale API, and the deck above is their most recent 1v1 lineup from that same API. Nothing is estimated.
