I re-read that page, and here's what I found
1. Covered by phase order
2. There is indeed a note in the action phase covering this. Either I missed it the first time or I read an older version of the page
3. Again, there is a note there which I missed on my first read through for whatever reason
4. My confusion here was with the rule. The page states that you cannot deploy a unit if you already have a unit of the same name. My question (in essence) was whether Elice's skill counted as a deployment (since it doesn't happen during deployment phase). And if the rule is actually that you cannot control two units with the same name. Otherwise, if Elice's skill is not a deployment, and the rule is against deploying units of the same name, there is theoretically nothing to prevent her from bringing back a same-named unit.
What might be the real issue is the Elice card translation on the wiki. The translation says to place the revived character on the battlefield (not strictly a deployment), but the japanese uses 出撃, which I think is the word for deployment. If so, then there would be no issue, and since the revival counts as a deployment, it would mean that it would trigger skills that happen on deployments (such as TD 4/3 Marth's moving skill)
Thanks