From good art to good plays, there are plenty of reasons to start a Pokemon card collection
If this is the second time this ability has resolved this turn, the Ring tempts you
It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or any Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, or so on
There's a fair amount of healthy debate amongst Eldrazi players as to which of the precon Eldrazi commanders is the best
Even if you are not abusing your life total with Necropotence there is a good chance you have some cards that can or do cost you some life although probably no where near enough to be killing you it will mean you are effectively on a lower starting life total
However, by investing in top-quality Japanese pokemon booster boxes, you have a chance to find rare cards without the premium of secondhand prices