原文Once Nissa's second ability begins to resolve, no player may take actions until it's done. Notably, players can't try to change Nissa's loyalty once you look at the card or choose to put it onto the battlefield.
原文If Nissa leaves the battlefield while her second ability is on the stack, use her last known loyalty to determine whether you may put the top card of your library onto the battlefield. If Nissa left the battlefield because she took enough damage to reduce her loyalty to 0, then her last known loyalty is 0.
原文Nissa's last ability sets the base power and toughness of the lands to 5/5. Any +1/+1 or -1/-1 counters that were on those lands will apply to those values.