For Commander, it gets stronger the higher the power level gets since youre more likely to encounter free spells like Force of Will and non-land mana acceleration
This also has convoke to drop him early and pay for Command Tax from the tokens you are making
While perhaps not quite good enough for Legacy or Modern Goblins, the three-mana lord has been widely adopted in Commander, which is a nice backstop if it ends up flopping in Standard
Last, but absolutely not least, Deep Clue Sea is significantly more powerful than the other Murders at Karlov Manor pre-cons
Warrant is being played in 2019, not 2013, so comparing it to cards like Seal Away and Baffling End is more appropriate, and in that light the card looks much better
You receive fewer boosters which may seem less value, but the Set boosters offer a higher ceiling on what you can open