Deadly Grub

Creature - Insect 3/1, 2B (3)
Vanishing 3 (This permanent comes into play with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When Deadly Grub is put into a graveyard from play, if it had no time counters on it, put a 6/1 green Insect creature token into play with shroud. (It can't be the target of spells or abilities.)¹
Illus. E. M. Gist

Crystal Keep Rulings Summaries

• The ability checks if there are any time counters on it when it left play. It does not matter how it left play with no time counters on it. [Planar Chaos FAQ 2006/12/13]
• Note - Also see Shroud, Rule 502.36.
• Note - Also see Token Creatures, Rule 216.
• Note - Also see Vanishing, Rule 502.60.

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/9)	Planar Chaos (Common)