It doesnt copy whether that creature is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, and so on
It sounds very likely we'll see Rebound return to Standard, bringing with it a whole new wave of powerful two-for-ones and interactions
But what are the mechanics you can expect
There are still a lot of common abilities that are brand-new to me scry, flash, lifelink, this thing where I earn the citys blessing, legendary cards that have four different potential abilities but most of it gets helpfully defined simply by right-clicking on a card
While white champions order and structure, green accentuates community and mutual reliance