The spell or ability is countered if all its targets, for every instance of the word вЂњtarget,вЂќ are now illegal. If the source of an ability has left the zone it was in, its last known information is used during this process. Other changes to the game state may cause a target to no longer be legal for example, its characteristics may have changed or an effect may have changed the text of the spell. A target thatвЂ™s no longer in the zone it was in when it was targeted is illegal. During resolution, this happens:Д¦08.2b If the spell or ability specifies targets, it checks whether the targets are still legal. In the case of Necrogenesis, the ability has only one target, so it would be countered. It would no longer be an illegal target, and the ability would be countered if it had no legal targets remaining. Tokens arenвЂ™t considered cards-even a card that represents a token isnвЂ™t considered a card for rules purposes.ДЄlso, state-based actions are checked again after you activate the ability, because you receive priority again after:ДЎ16.3c If a player has priority when he or she casts a spell, activates an ability, or takes a special action, that player receives priority afterward.ДЄ similar ability that could target a token in a graveyard (which does not currently exist) would still not work, because the token would cease to exist before you get priority again just after you activate it. Certain formats also use nontraditional Magic cards, oversized cards that may have different backs. Most Magic games use only traditional Magic cards, which measure approximately 2.5 inches (6.3 cm) by 3.5 inches (8.8 cm). When a rule or text on a card refers to a вЂњcard,вЂќ it means only a Magic card.

Even if you somehow did have a chance to activate it, a token is not a 'creature card', so it isn't a legal target for the ability:ДЎ08.2. You do not have a chance to activate Necrogenesis's ability between the time the token enters the graveyard and the time it ceases to exist. The token ceases to exist as a state-based action:Д§04.5d If a token is phased out, or is in a zone other than the battlefield, it ceases to exist. This process also occurs during the cleanup step (see rule 514), except that if no state-based actions are performed as the result of the stepвЂ™s first check and no triggered abilities are waiting to be put on the stack, then no player gets priority and the step ends. Once no more state-based actions have been performed as the result of a check and no triggered abilities are waiting to be put on the stack, the appropriate player gets priority.

If any state-based actions are performed as a result of a check, the check is repeated otherwise all triggered abilities that are waiting to be put on the stack are put on the stack, then the check is repeated. Whenever a player would get priority (see rule 116, вЂњTiming and PriorityвЂќ), the game checks for any of the listed conditions for state-based actions, then performs all applicable state-based actions simultaneously as a single event. You do not get priority before state-based actions are checked:Д§04.3. You still can't get the saproling for several reasons. This alone doesn't prevent you from using Necrogenesis's ability to get a saproling, though, because it doesn't prevent you from targeting it with the ability the ability just wouldn't exile the token when it resolved. It ceases to exist the next time state-based actions are checked see rule 704.

If such a token would change zones, it remains in its current zone instead. Your question, literally, can be answered very simply: You cannot exile a token from a graveyard, because tokens that have left the battlefield cannot change zones:ДЎ10.5g A token that has left the battlefield canвЂ™t move to another zone or come back onto the battlefield.

Mtg tokens