Theme:  Blink & enters-the-battlefield effects.

Gameplan:  Play creatures that do good things when they come into play, hit people with them, and use Roon or other blink effects to get the "good things" all over again.

Strengths:  Creatures with strong ETB effects tend to be good anyway; being able to reuse the effects easily just makes them that much better.  Multiple return-from-graveyard creatures (Sun Titan / Eternal Witness / Karmic Guide / Reveillark) give resilience against board wipes, especially when they bring each other back.  Sundial of the Infinite turns the commander's blinks into reusable spot removal.

Weaknesses:  Torpor Orb and Humility turn off creature ETB effects, which neuters most of the deck, and the only out to both is Krosan Grip.  (Mangara of Corondor can kill the Orb; Aura Shards could destroy Humility.)