It can steal any creature with power less than it and keep it throughout multiple turns so long as it stays untapped
Armada Comics Book Inserts Index | 1995 | Other Inserts 1995-1996 The comic book The Shadow Mage is a four part mini-series published in 1995 by Armada Comics, an imprint of Acclaim Comics
The card becomes much better if youre able to cast it where one or most of your opponents dont actually have a creature to bring back, just you
Of course, making another 1/1 Saproling seems small-ball for Xaviers ability, so Id be on the hunt for something that can make much bigger token creatures, such as The Skullspore Nexus, or copy spells like Cackling Counterpart
Burning Tail also does 130 instead of 80 under these circumstances
(For those of you who arent familiar with cumulative upkeep, this effect triggers at the beginning of each of your upkeeps