Centering is the most straightforward since it's literally a measurement
9.7/10$3.18 Myr Retriever Artifact Creature Myr 1/1 When this creature dies, return another target artifact card from your graveyard to your hand
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If a Knight you control is dealt lethal damage at the same time as Venerable Knight, they die at the same time
All things considered, knowing what is in your opponents hand is very useful information, however, the real value lies in your ability to take away their best creature, and turn it into Valki later
Artifact synergy is one of the cleanest and most effective ways to run away with a Commander game, and Ravenous Robots is another entry in that tried and true tradition