diff --git a/card/standard.js b/card/standard.js
index 84dca8616..eb1c3b860 100644
--- a/card/standard.js
+++ b/card/standard.js
@@ -1168,26 +1168,21 @@ game.import('card',function(lib,game,ui,get,ai,_status){
 					}
 					else{
 						var next=event.turn.chooseToRespond({name:'sha'});
-						if(event.shaRequired>1){
-							next.set('prompt2','共需打出'+event.shaRequired+'张杀')
-						}
+						if(event.shaRequired>1) next.set('prompt2','共需打出'+event.shaRequired+'张杀');
 						next.set('ai',function(card){
-							var event=_status.event;
-							var player=event.splayer;
-							var target=event.starget;
-							if(player.hasSkillTag('notricksource')) return 0;
-							if(target.hasSkillTag('notrick')) return 0;
+							let event=_status.event,player=event.splayer,target=event.starget;
+							if(player.hasSkillTag('notricksource')||target.hasSkillTag('notrick')) return 0;
 							if(event.shaRequired>1&&player.countCards('h','sha')<event.shaRequired) return 0;
-							if(event.player==target){
-								if(player.hasSkill('naman')) return -1;
-								if(get.attitude(target,player)<0||event.player.hp<=1&&get.damageEffect(target,player,event.player)<get.damageEffect(player,target,event.player)){
+							if(event.player===target){
+								if(_status.event.tdamage>=0||player.hasSkill('naman')) return -1;
+								if(get.attitude(target,player)<=0||event.player.hp<=1&&_status.event.tdamage<_status.event.pdamage){
 									return get.order(card);
 								}
 								return -1;
 							}
 							else{
-								if(target.hasSkill('naman')) return -1;
-								if(get.attitude(player,target)<0||event.player.hp<=1&&get.damageEffect(target,player,event.player)>get.damageEffect(player,target,event.player)){
+								if(_status.event.pdamage>=0||target.hasSkill('naman')) return -1;
+								if(get.attitude(player,target)<=0||event.player.hp<=1&&_status.event.tdamage>_status.event.pdamage){
 									return get.order(card);
 								}
 								return -1;
@@ -1195,6 +1190,8 @@ game.import('card',function(lib,game,ui,get,ai,_status){
 						});
 						next.set('splayer',player);
 						next.set('starget',target);
+						next.set('pdamage',get.damageEffect(player,target,event.turn));
+						next.set('tdamage',get.damageEffect(target,player,event.turn));
 						next.set('shaRequired',event.shaRequired);
 						next.autochoose=lib.filter.autoRespondSha;
 						if(event.turn==target){
diff --git a/character/shenhua.js b/character/shenhua.js
index cc85b1691..df33d0493 100755
--- a/character/shenhua.js
+++ b/character/shenhua.js
@@ -1035,7 +1035,7 @@ game.import('character',function(lib,game,ui,get,ai,_status){
 				ai:{
 					effect:{
 						target:function(card,player,target){
-							let hs=player.getCards('h',i=>i!==card&&(!card.cards||!card.cards.contains(i))),num=player.getCardUsable('sha');
+							let hs=player.getCards('h',i=>i!==card&&(!card.cards||!card.cards.includes(i))),num=player.getCardUsable('sha');
 							if(card.name!=='sha'&&card.name!=='juedou'||hs.length<target.countCards('h')) return 1;
 							if(game.hasPlayer2(function(current){
 								return current.getHistory('useCard',function(evt){
@@ -1044,6 +1044,7 @@ game.import('character',function(lib,game,ui,get,ai,_status){
 							})) return 1;
 							if(card.name==='sha') num--;
 							hs=hs.filter(i=>{
+								if(!player.canUse(i,target)) return false;
 								if(i.name==='juedou') return true;
 								if(num&&i.name==='sha'){
 									num--;
diff --git a/character/sp2.js b/character/sp2.js
index 0a7247173..64a4ff12c 100644
--- a/character/sp2.js
+++ b/character/sp2.js
@@ -1537,6 +1537,13 @@ game.import('character',function(lib,game,ui,get,ai,_status){
 						},
 						content:function(){
 							player.draw(trigger.getl(player).cards2.length);
+						},
+						ai:{
+							effect:{
+								target:(card,player,target)=>{
+									if((get.tag(card,'lose')||get.tag(card,'discard'))&&target.getHistory('damage').length&&!target.hasHistory('useSkill',evt=>evt.skill=='dczhengxu_lose')) return [1,1];
+								}
+							}
 						}
 					},
 					damage:{
@@ -1555,10 +1562,24 @@ game.import('character',function(lib,game,ui,get,ai,_status){
 						},
 						ai:{
 							effect:{
-								target:function(card,player,target){
-									if(player.hasSkillTag('jueqing',false,target)) return;
-									if(target.hasHistory('useSkill',evt=>evt.skill=='dczhengxu_damage')) return;
-									if(get.tag(card,'damage')) return 0.6;
+								target:(card,player,target)=>{
+									if(player.hasSkillTag('jueqing',false,target)||!get.tag(card,'damage')) return;
+									if(target.hasHistory('useSkill',evt=>evt.skill=='dczhengxu_damage')||!target.hasHistory('lose',evt=>evt.cards2&&evt.cards2.length)) return;
+									if(get.attitude(player,target)>=0) return 'zeroplayertarget';
+									let num=0,shas=player.getCardUsable('sha'),hs=player.getCards('hs',i=>{
+										if(i===card||card.cards&&card.cards.includes(i)||!get.tag(i,'damage')||!player.canUse(i,target)) return false;
+										if(get.name(i)==='sha'){
+											num++;
+											return false;
+										}
+										return true;
+									});
+									if(card.name==='sha') shas--;
+									num=Math.min(num,shas);
+									num+=hs.length;
+									if(!num) return 'zeroplayertarget';
+									num=1-2/3/num;
+									return [num,0,num,0];
 								}
 							}
 						}
diff --git a/character/xianding.js b/character/xianding.js
index 8a12c92ab..6d4b2e4f7 100644
--- a/character/xianding.js
+++ b/character/xianding.js
@@ -5146,11 +5146,11 @@ game.import('character',function(lib,game,ui,get,ai,_status){
 				},
 				ai:{
 					effect:{
-						target:function(card,player,target){
-							if(player==target) return;
+						target:(card,player,target)=>{
+							if(player===target) return;
 							if(game.hasPlayer2(current=>{
 								return current.hasHistory('useCard',evt=>evt.card.name==card.name&&evt.targets&&evt.targets.contains(player));
-							})) return 'zerotarget';
+							})) return 'zeroplayertarget';
 						}
 					}
 				}