Tamiyo, Field Researcher 1GWU Planeswalker Tamiyo 4 +1: Choose up to two target creatures
Reap Intellect Sephiroth, Planet's Heir Silas Renn, Seeker Adept Sire of Stagnation Sivitri, Dragon Master Talion, the Kindly Lord Tasha, Unholy Archmage Tasha, the Witch Queen Tegwyll, Duke of Splendor Tezzeret the Schemer Tezzeret, Agent of Bolas Tezzeret, Master of Metal Tezzeret, Master of the Bridge The Ancient One The Scarab God Ukkima, Stalking Shadow Umbris, Fear Manifest Vela the Night-Clad Wilhelt, the Rotcleaver Wrexial, the Risen Deep Xanathar, Guild Kingpin Yuriko, the Tiger's Shadow
The value here is pretty high in reprints, but many of the new cards are narrow
Blightsteel Colossus is one of the most powerful creatures in general as one of the few creatures that can end any game with one attack
Thinking of this capability like a miniature form of the Mutate mechanic is sure to help people to understand the mechanic a bit better
Additionlly, Commander games sometimes stall out, and a player needs ways to reach out to their opponent's life totals using things like direct damage or life loss
