If I control multiple copies of Zilean, Time Mage and play a token unit, does each Zilean trigger to create additional tokens?

Ruling: Yes. Multiple Zilean units result in a linear increase in tokens created, with each Zilean adding one additional token. If you control two Zileans and play one token, you will create three tokens total (the original plus one from each Zilean).

Sequence:

• You play a token unit, triggering all Zilean replacement effects
• You choose the order to apply the replacement effects (Rule 372)
• The first Zilean replaces the event, changing it from "play 1 token" to "play 2 tokens"
• The second Zilean can still apply to this replaced event, changing it to "play 3 tokens"
• Each Zilean applies exactly once to the event chain

Nuances:

• Rule 370.2 prevents each individual Zilean from applying multiple times to the same event chain, but does not prevent different Zilean units from each applying once
• The key phrase in Rule 370.2 is "or to any Game Actions or events that replace that event" - this allows subsequent Zileans to modify the already-replaced event