Samsara,
1 Tuner + 1 or more non-Tuner monsters
If this card is destroyed by battle and sent to the Graveyard, or if this card you control is sent to your Graveyard by an opponent's card effect: You can target 1 monster in either player's Graveyard, except "Samsara, Dragon of Rebirth"; Special Summon it. You can only use this effect of "Samsara, Dragon of Rebirth" once per turn.
local s, id, o = GetID()
function s.initial_effect(c)
	--synchro summon
	aux.AddSynchroProcedure(c, nil, aux.NonTuner(nil), 1)
	c:EnableReviveLimit()
	--spsummon
	local e1 = Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id, 0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_TO_GRAVE)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET + EFFECT_FLAG_DAMAGE_STEP + EFFECT_FLAG_DELAY)
	e1:SetCountLimit(1, id)
	e1:SetCondition(s.spcon1)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	local e2 = e1:Clone()
	e2:SetCode(EVENT_BATTLE_DESTROYED)
	e2:SetCondition(s.spcon2)
	c:RegisterEffect(e2)
end
function s.spcon1(e, tp, eg, ep, ev, re, r, rp)
	return rp == 1 - tp and bit.band(r, REASON_EFFECT) ~= 0 and e:GetHandler():IsPreviousControler(tp) and e:GetHandler():IsPreviousLocation(LOCATION_ONFIELD)
end
function s.spcon2(e, tp, eg, ep, ev, re, r, rp)
	return e:GetHandler():IsLocation(LOCATION_GRAVE) and e:GetHandler():IsReason(REASON_BATTLE)
end
function s.filter(c, e, tp)
	return not c:IsCode(id) and c:IsCanBeSpecialSummoned(e, 0, tp, false, false)
end
function s.sptg(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
	if chkc then
		return chkc:IsLocation(LOCATION_GRAVE) and s.filter(chkc, e, tp)
	end
	if chk == 0 then
		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingTarget(s.filter, tp, LOCATION_GRAVE, LOCATION_GRAVE, 1, nil, e, tp)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
	local g = Duel.SelectTarget(tp, s.filter, tp, LOCATION_GRAVE, LOCATION_GRAVE, 1, 1, nil, e, tp)
	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, g, 1, 0, 0)
end
function s.spop(e, tp, eg, ep, ev, re, r, rp)
	local tc = Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc, 0, tp, tp, false, false, POS_FACEUP)
	end
end


Samsara,
1 Tuner + 1 or more non-Tuner monsters
If this card is destroyed by battle and sent to the Graveyard, or if this card you control is sent to your Graveyard by an opponent's card effect: You can target 1 monster in either player's Graveyard, except "Samsara, Dragon of Rebirth"; Special Summon it. You can only use this effect of "Samsara, Dragon of Rebirth" once per turn.
-- Samsara,
local s, id, o = GetID()
function s.initial_effect(c)
	--synchro summon
	aux.AddSynchroProcedure(c, nil, aux.NonTuner(nil), 1)
	c:EnableReviveLimit()
	--spsummon
	local e1 = Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id, 0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_TO_GRAVE)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET + EFFECT_FLAG_DAMAGE_STEP + EFFECT_FLAG_DELAY)
	e1:SetCountLimit(1, id)
	e1:SetCondition(s.spcon1)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	local e2 = e1:Clone()
	e2:SetCode(EVENT_BATTLE_DESTROYED)
	e2:SetCondition(s.spcon2)
	c:RegisterEffect(e2)
end
function s.spcon1(e, tp, eg, ep, ev, re, r, rp)
	return rp == 1 - tp and bit.band(r, REASON_EFFECT) ~= 0 and e:GetHandler():IsPreviousControler(tp) and e:GetHandler():IsPreviousLocation(LOCATION_ONFIELD)
end
function s.spcon2(e, tp, eg, ep, ev, re, r, rp)
	return e:GetHandler():IsLocation(LOCATION_GRAVE) and e:GetHandler():IsReason(REASON_BATTLE)
end
function s.filter(c, e, tp)
	return not c:IsCode(id) and c:IsCanBeSpecialSummoned(e, 0, tp, false, false)
end
function s.sptg(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
	if chkc then
		return chkc:IsLocation(LOCATION_GRAVE) and s.filter(chkc, e, tp)
	end
	if chk == 0 then
		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingTarget(s.filter, tp, LOCATION_GRAVE, LOCATION_GRAVE, 1, nil, e, tp)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
	local g = Duel.SelectTarget(tp, s.filter, tp, LOCATION_GRAVE, LOCATION_GRAVE, 1, 1, nil, e, tp)
	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, g, 1, 0, 0)
end
function s.spop(e, tp, eg, ep, ev, re, r, rp)
	local tc = Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc, 0, tp, tp, false, false, POS_FACEUP)
	end
end

