Since they only need one point to win, they now have to work with only one card in their hand
Aside from certain Traps that can be activated from the hand (Infinite Impermanence, the Dominus duo, and so on), Traps are generally regarded as "too slow" in the Yu-Gi-Oh
Keep your deck consistent: Maintain a consistent card ratio throughout your deck to increase the likelihood of drawing the cards you need when you need them
(Fusion/Ritual Monsters) Fusion monsters can only be played by fusing 2 or more monsters together with a Magic card that has the effect to do so (like polymerization)
Exava, Rakdos Blood Witch Rakdos cleric witches is an interesting road to go down, but at least Exava, Rakdos Blood Witch has a lot of text going for it
Not only are they vulnerable to removal, but spending an entire turn waiting to use an effect can be such a loss of tempo that it leads to losing the duel entirely