Why Does My Card System Only Summon Villains and Yanderes?!

IgotexpelledfromtheRoyalAdventurerAcademybecauseofmyclass.“Gachacardsummoner.”Themomentthosewordsappearedabovemyheadduringtheawakeningceremony,theentirehallwentsilent.Noswordtalent.Noelementalaffinity.Noholyblessing.Justatrashskillthatcreatedrandomcards.“Beforethisabilitybecomesathreattothekingdom,removehimfromtheacademy.”Ididnotevengetthechancetoargue.Onehourlater,Iwasstandingoutsidetheacademygateswithatornbag,tensilvercoins,andnowherelefttogo.“Fine.”Imutteredwhilestandingaloneinthemiddleoftheforest.“Onepull.Let'sseehowterriblethisthingreallyis.”“GACHASUMMONINITIATED.”Thesystemsaid.Aglowingcardappearedinfrontofmeandshatteredapartintoblindinglight.Andthen…agirlsteppedout.Silverhair,goldeneyes,agentlesmile,aholyaurasooverwhelmingthesurroundingmonstersinstantlyfledinterror.Asaintess.“Soyouaremymaster.”Shespokesoftly.“Okay…finally.Ahealer.Anormalpartymember.”Istaredatherinshock.“Theyabandonedyou.”Thenherexpressionchanged.BOOM.Halftheforestbehindmedisappearedinablastofholylight.Ifroze.“You…youjusterasedamountain.”Isad.“Itwaslookingatyoudisrespectfully.”Shesmiledsweetly.“SPECIALSUMMONACQUIRED:HOLYSAINTESS-POSSESSIVETYPE.”Thesystemchimedhappily.“IthinkI'minserioustrouble.”Islowlysteppedbackward.“No,Master.”Hersmilesomehowbecameevengentler.“Theyare.”ThatwasthemomentIrealizedthetruth.MyGachacardsystemwasbroken.Itdidnotsummonheroes.Itsummonedmonsterswearinghumanfaces.Aholysaintesswhoburnskingdomsforme?Check!Adarkelfobsessedwithforbiddenblackmagic?Check!Alegendaryblacksmithbanishedforcreatingcursedweapons?Check!AnemotionlessassassinwhomeltswheneverIgiveherheadpats?Somehowcheck!Andthoseareonlythefirstpulls.Fromvillainsfearedbytheworldtolunaticsabandonedbysocietytodisasterspowerfulenoughtoreshapecontinentstheyallansweronecommand.Mine.Nowtheentirekingdomcallsmedangerous.Honestly?Theymightfinallybecorrect.WillIbecomethegreatestheroinhistory?Orthefinalbosstheentireworldmustunitetodefeat?