A prebuilt, lower power Constructed deck is going to be a more approachable starting point for most than jumping in at the deep end with Commander
If some, but not all, of the creatures are illegal targets as the triggered ability tries to resolve, the original distribution of counters still applies and the counters that would have been put on illegal targets are lost
If Zurgo Stormrender leaves the battlefield at the same time as one or more creature tokens you control, its last ability will trigger once for each of those creature tokens
As a reminder, heres our ranking of the four decks, one of which features in our handy best MTG decks ranking (focusing on precon decks you can still buy and play right now)
Value Generation: Many blink cards work well with creatures that have strong enter-the-battlefield abilities, allowing you to gain value from your cards repeatedly