502.13. Cumulative Upkeep
502.13a Cumulative upkeep is a triggered ability that imposes an increasing cost on a permanent. “Cumulative upkeep [cost]” means “At the beginning of your upkeep, put an age counter on this permanent, then sacrifice this permanent unless you pay [cost] for each age counter on it.” If [cost] has choices associated with it, each choice is made separately for each age counter, then either the entire set of costs is paid, or none of them is paid. Partial payments aren’t allowed.
Example: A creature has “Cumulative upkeep {W} or {U}” and two age counters on it. When its ability next triggers and resolves, the creature’s controller puts an age counter on it and then may pay {W}{W}{W}, {W}{W}{U}, {W}{U}{U}, or {U}{U}{U} to keep the creature in play.
Example: A creature has “Cumulative upkeep—Sacrifice a creature” and one age counter on it. When its ability next triggers and resolves, its controller can’t choose the same creature to sacrifice twice. Either two different creatures must be sacrificed, or the creature with cumulative upkeep must be sacrificed.
502.13b If a permanent has multiple instances of cumulative upkeep, each triggers separately. However, the age counters are not linked to any particular ability; each cumulative upkeep ability will count the total number of age counters on the permanent at the time that ability resolves.
Example: A creature has two instances of “Cumulative upkeep—Pay 1 life.” The creature currently has no counters but both cumulative upkeep abilities trigger. When the first ability resolves, the controller adds a counter and then chooses to pay 1 life. When the second ability resolves, the controller adds another counter and then chooses to pay an additional 2 life.
C'est la première option la bonne :
Le premier tour, tu mets un marqueur âge sur ton protecteur puis tu mets un marqueur +1/+1 sur un créature adverse. Le deuxième, tu rajoutes un marqueur âge puis tu mets deux fois un marqueur +1/+1 sur une créature adverse.... Le n-ième tour, tu rajoutes un marqueur âge puis tu mets n fois un marqueur +1/+1 sur une créature adverse.
Si ton adversaire ne contrôle pas de créature tu ne peux pas payer le coût d'entretien et donc tu dois sacrifer ton ancien protecteur.
