This is very easy; one of the most basic scripts is draw scripts.
local e1=Effect.CreateEffect(c)
e1:SetCategory(CATEGORY_DRAW)
e1:SetType(EFFECT_TYPE_ACTIVATE)
e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
e1:SetCode(EVENT_FREE_CHAIN)
e1:SetTarget(c55144522.target)
e1:SetOperation(c55144522.activate)
c:RegisterEffect(e1)
end
function c55144522.target(e,tp,eg,ep,ev,re,r,rp,chk)
if chk==0 then return Duel.IsPlayerCanDraw(tp,2) end
Duel.SetTargetPlayer(tp)
Duel.SetTargetParam(2)
Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,2)
end
function c55144522.activate(e,tp,eg,ep,ev,re,r,rp)
local p,d=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER,CHAININFO_TARGET_PARAM)
Duel.Draw(p,d,REASON_EFFECT)
end