Prioritize cards that have these abilities to keep your opponent guessing your next move throughout the game
The longer it stays on board, the longer your opponents need to respect it (and play around it)
It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or any Auras or Equipment attached to it, or any non-copy effects that have changed its types, color, power and toughness, and so on
And the Kavu Primarch really lives up to his name
When Spiteful Sliver is dealt damage, Guilty Conscience will deal that much damage to Spiteful Sliver
I've had a bit of a challenge adjusting in power levels, but I've also had plenty of days of getting my butt kicked at both stores, along with my fair share of success