Shen

[Action][>] : Give a friendly unit [Tank] this turn. (It must be assigned combat damage first.)

[Reaction] (Play any time, even before spells and abilities resolve, including to a battlefield you control.)
[Shield 2] (+2 while I'm a defender.)
[Tank] (I must be assigned combat damage first.)

When I hold, if there is exactly one other unit you control here, draw 1.

[Shield] (+1 while I'm a defender.)
When I hold, if there is exactly one other unit you control here, you score 1 point.

Move an enemy unit to a battlefield where you have units. If you have exactly two units there, they each get +1 this turn.
[Flow] 5 (You may play this from your trash for its Flow cost. Then banish it.)