  [OII] emission maps obtained with the Keck Cosmic Web Imager (KCWI) are
presented for four galaxies lying at the centers of cooling X-ray cluster
atmospheres. Nebular emission reaching altitudes of tens of kpc is found in
systems covering a broad range of atmospheric cooling rates, cluster masses,
and dynamical states. The central galaxy in Abell 262 hosts high angular
momentum gas in a kpc-scale disk. The nebular gas in RXJ0820.9+0752 is offset
and redshifted with respect to the central galaxy by $10-20$ kpc and $150$ km
s$^{-1}$, respectively. The nebular gas in PKS 0745-191 and Abell 1835, both
experiencing strong radio-mechanical feedback, is being churned to higher
velocity dispersion by the buoyantly rising bubbles and jets. Churning gas
flows, likely outflows behind the rising radio bubbles, are likely driven by
buoyancy and ram pressure due to the galaxies' motion with respect to the gas.
The churned gas is enveloped by larger scale, lower velocity dispersion
quiescent nebular emission. The mean radial speeds of the churned gas,
quiescent gas, and the central galaxy each differ by up to $\sim 150$ km
s$^{-1}$, although speeds upward of $800$ km s$^{-1}$ are found. Nebular gas is
dynamically complex due to feedback, motion of the central galaxy, and perhaps
relative motion of the hot atmosphere from which it presumably condensed. These
motions will affect thermally unstable cooling models, the dispersal of jet
energy, and the angular momentum of gas accreting onto the galaxy and its
nuclear black hole.
