Experiment Kraj

[FlickerYourOwnIdentity]

{Experiment Kraj}, and {Callous Oppresor}.

Choose not to untap the Oppresor after putting a +1/+1 counter and just continue taking creatures with Experiment Kraj because it says you keep the creatures as long as the Oppresor is tapped.

[Sardok]

Won't work, sorry.

201.4b If an ability of an object refers to that object by name, and an object with a different name gains that ability, all instances of the first name in the gained ability should be treated as the second name.

[FlickerYourOwnIdentity]

Well that makes my Kraj deck a lot easier to make.  Thank you!

[Qpwner]

{Gyre sage}+{gilder bairn}+kraj

[DrainCleaner]

You can still use kraj to gain control of things until end of turn.

[Subiskier]

{rubinia soulsinger} + {conjurers closet} = steal creatures for good