4 Oct 2004
Any +1/+1 counter which is on this card can be turned into a Tetravite token. It does not care where the +1/+1 counter came from.
4 Oct 2004
If the Tetravus is destroyed when the Tetravites are off the card, they are not destroyed, they are just orphaned.
4 Oct 2004
Only Tetravites from this specific Tetravus may be used for the ability. Ones from a different Tetravus can't.
1 Aug 2008
This card now has two upkeep-triggered abilities. Its controller chooses the order they are put on the stack, and thus the order in which they resolve each upkeep.