Jin-Gitaxias, Progress Tyrant | Venser, Shaper Savant | Panharmonicon

(and one other card)

({5} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) each turn available.

Cast
Capture of Jingzhou by paying ({3} magic symbol) ({U} magic symbol) ({U} magic symbol) .
Jin-Gitaxias triggers, copying
Capture of Jingzhou.
Holding priority, cast
Venser by paying ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) .
When
Venser enters the battlefield, it triggers twice, returning itself and the original
Capture of Jingzhou to your hand from the battlefield and stack respectively.
Resolve the copy of
Capture of Jingzhou, causing you to take an extra turn after this one.
Repeat each turn.