Workout

Warm-up (800)
200 swim/200 pull/200 kick/200 swim

Set (200)
4 x 50 build on :50

Set (2200)
2 rounds
4 x 200 on 3:00/2:40 per rd
8 x 25 on :30
...2 each stroke, IMO
...odds: build
...evens: fast
100 easy on 2:00

Set (200)
200 FAST for time

Cool-down (200)
200 easy