Spelling errors are another dead giveaway
If a card copied by one of the tokens had any "when [this creature] enters the battlefield" abilities, the appropriate token also has those abilities and will trigger them when it's created
Tyrranax Atrocity has toxic 3, which means it distributes 3 poison counters to the opponent in which it deals combat damage and so on
It can grind with the best of them, and one-hit KOs are relatively common through commander damage
poker1379505 67.5 KB poker216001600 331 KB poker31080810 152 KB poker4 full1080810 146 KB poker5 majdiff379505 68.8 KB 1998: Blue and Yellow Decks Pokemon or seed seems to be printed randomly, as can be seen swapped (same seed and color, different Pokemon)
Cards like Elven Ambush double your creature count, while Lys Alana Huntmaster makes your Elf creature spells a two-for-one, giving you an Elf token every time you cast an Elf card