Unearth allows you to bring a creature back from the dead for a turn, give them haste and then exile them at the end of the turn or if they die
Partner (You can have two commanders if both have partner.) Whenever a creature you control dies or is put into the command zone, if it had one or more +1/+1 counters on it, you may put that many +1/+1 counters on target creature
The way these cards are working is identical to how Ikoria: Lair of Behemoths did its tie-in with the Godzilla universe, where cards from the set have alternate art but are still treated as the same game piece
Ive played for nearly 15 years, starting with the equivalent of kitchen tables in college, moving into competitive Standard and Extended around Lorwyn and Shards of Alara, and then ending up back at the kitchen tables afterward
In particular, many of the Seven Dwarfs help each other by boosting their power the more Dwarfs you have out
If your deck is full of the same type of card (like a Slime Against Humanity, for example), then you get a discount on casting