Giant
You can discard 1 monster; Special Summon 1 Level 4 or lower Wyrm-Type monster from your Deck. You can only use this effect of "Giant Pairfish" once per turn.
local s, id, o = GetID()
function s.initial_effect(c)
	--spsummon
	local e3 = Effect.CreateEffect(c)
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetRange(LOCATION_MZONE)
	e3:SetCountLimit(1, id)
	e3:SetCost(s.spcost)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
function s.costfilter(c)
	return c:IsType(TYPE_MONSTER) and c:IsDiscardable()
end
function s.spcost(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.IsExistingMatchingCard(s.costfilter, tp, LOCATION_HAND, 0, 1, nil)
	end
	Duel.DiscardHand(tp, s.costfilter, 1, 1, REASON_COST + REASON_DISCARD)
end
function s.filter(c, e, tp)
	return c:IsLevelBelow(4) and c:IsRace(RACE_WYRM) and c:IsCanBeSpecialSummoned(e, 0, tp, false, false)
end
function s.sptg(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingMatchingCard(s.filter, tp, LOCATION_DECK, 0, 1, nil, e, tp)
	end
	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, nil, 1, tp, LOCATION_DECK)
end
function s.spop(e, tp, eg, ep, ev, re, r, rp)
	if Duel.GetLocationCount(tp, LOCATION_MZONE) <= 0 then
		return
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
	local g = Duel.SelectMatchingCard(tp, s.filter, tp, LOCATION_DECK, 0, 1, 1, nil, e, tp)
	if g:GetCount() > 0 then
		Duel.SpecialSummon(g, 0, tp, tp, false, false, POS_FACEUP)
	end
end


Giant
You can discard 1 monster; Special Summon 1 Level 4 or lower Wyrm-Type monster from your Deck. You can only use this effect of "Giant Pairfish" once per turn.
-- Giant
local s, id, o = GetID()
function s.initial_effect(c)
	--spsummon
	local e3 = Effect.CreateEffect(c)
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetRange(LOCATION_MZONE)
	e3:SetCountLimit(1, id)
	e3:SetCost(s.spcost)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
function s.costfilter(c)
	return c:IsType(TYPE_MONSTER) and c:IsDiscardable()
end
function s.spcost(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.IsExistingMatchingCard(s.costfilter, tp, LOCATION_HAND, 0, 1, nil)
	end
	Duel.DiscardHand(tp, s.costfilter, 1, 1, REASON_COST + REASON_DISCARD)
end
function s.filter(c, e, tp)
	return c:IsLevelBelow(4) and c:IsRace(RACE_WYRM) and c:IsCanBeSpecialSummoned(e, 0, tp, false, false)
end
function s.sptg(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingMatchingCard(s.filter, tp, LOCATION_DECK, 0, 1, nil, e, tp)
	end
	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, nil, 1, tp, LOCATION_DECK)
end
function s.spop(e, tp, eg, ep, ev, re, r, rp)
	if Duel.GetLocationCount(tp, LOCATION_MZONE) <= 0 then
		return
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
	local g = Duel.SelectMatchingCard(tp, s.filter, tp, LOCATION_DECK, 0, 1, 1, nil, e, tp)
	if g:GetCount() > 0 then
		Duel.SpecialSummon(g, 0, tp, tp, false, false, POS_FACEUP)
	end
end

