chinese simplified booster box - Stellar Crystal Gem Pack Vol. 3 -

Only doing beginner matches could get tedious, so you can mix it up

Also, Special Summons are free so they dont take up your 1 regular Normal Summon/Set during your turn, and can even sometimes be done during your opponents turn

Item cards are played from your hand, then you follow the instructions on the card itself, before placing it on your discard pile

There werent many Pokemon that changed type and they are pretty canonically fairy (Clef line, Toge line, etc) so I dont understand the issue

Trishula allows you to deal with 3 threats all at once: banishing a card each from your opponents hand, field, and graveyard, right when its synchro summoned