If the creature token is a copy of a creature, then it has the mana cost (and thus mana value) as the original creature, so the token deals damage equal to its mana value like the original creature
A handful of other cards put an interesting twist on this idea using hit counters, which are placed on victims after they die rather than before
The Soldier tokens created by Caesar's ability enter the battlefield tapped and attacking, but since they weren't declared as attacking creatures, no abilities that trigger whenever a creature attacks or whenever you attack (such as Caesar's own ability) will trigger
Alexander Gregory Planeswalker is a permanent card type in Magic, similar to a creature, artifact, saga, battle (whatever that is), etc
Selling these is still going to be tricky, though, and its really only worth it if youve got a big storefront like StarCityGames.com and you can keep hundreds of copies sorted and in stock
#20 - Solitude/Subtlety/Grief/Fury/Endurance The free-spell evoke elementals from Modern Horizons 2 have cemented themselves well in 60-card formats and are decent in Commander