Can only resurrect allies or retainers burned from play. Discards and blocked actions do not qualify.
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Resurrection
+1 stealth action. Only usable if an ally or retainer has been burned from play since your last turn.
Move the ally or retainer card from your ash heap to your hand.
Move the retainer card from an ash heap to this vampire, with life equal to its starting life. If it requires a Discipline, use the basic level.
As above, but move the ally card instead and put it in your ready region, unlocked.
Rulings
"Since your last turn" means between the end of your last turn and now. Your last turn does not qualify, your current turn does.
When played, a multi-Disciplines card counts as requiring the Discipline(s) being used. In the hand, library, or ash heap, the card is considered to require any and/or all Disciplines listed on it.
, Cards requiring a discipline come in play at the inferior version.
, Requirements do not apply. If the cost is X (e.g. Reanimated Corpse), X is zero. If the effect puts/moves a minion into the ready region, that minion can act this turn.
Is an undirected action, even when targeting another Methuselah's ash heap.
Cannot be played if no target is available in any Methuselah's ash heap.