even if this deck has 50 cards on it, this deck is still consistent. this deck trying to combine some level 3 monster that has Psychic-type. myuta has level 3 baby with psychic-type and myutant can play when the baby is on hand to connect the level 8 monster + 1 myutant spell/trap, and myutant field spell on hand, you still can do PUNK. combo :) the level 8 myutant can be a dead card so you can discard it for another card effect that needs to discard/banish 1 card from hand. some other level-3 with psychic can support the PUNK archetype fine because PUNK boss monster (the synchro lv 11) can shuffle as many cards as the level 3 psychic on the GY. I use Overdrive Teleporter because he can provide some good extender combo and instant level 9 synchro, but you must normal summon him. for the extra deck monster I use myutant because they are good boss monster, virtual world extra deck monster card can be a good control card and some psychic extra deck monster like the new level 11 psychic boss monster :) and there some rank 3 xyz if you cannot synchro or fusion. Leviair the Sea Dragon can recycle the banished monster and reuse the effect like NyanNyan. the side deck contain some card that can be helpful too depending on your playing style. Lava Golem can help kill the unkillable monster too :)
for starter hand if you have the more than 1 level 3 monster/punk monsters or 1 punk monster that can summon another PUNK monster (in this case the level 8 PUNK or Noh PUNK Seamin) you can start your combo. (but if only Noh PUNK Seamin on hand and no other monster, your best monster for that turn are just 1 of the lv 8 I'm afraid or you can search for Noh PUNK Foxy Tune(the white lv 8) to special summon 1 level 3 punk and do xyz, or you have other alternative depend on the situation but still 1 seamin still better than 1 other level 3 punk :) Overdrive Teleporter can be a good combo extender try to call 2 card that you need (maybe Noh PUNK Seamin and the baby myutant or other 2 monsters depending on your situation) and try to access the level 9 synchro if you want or another type of board that you want :)
sadly I think this deck need more recycler like psychic overload/pot series. but still, a deck with 50 cards on it can still repeat the combo 1-4 times before run out of resource and some extra deck monster like Virtual World Kyubi - Shenshen and Psy-framelord omega can do some little bit recycle with NyanNyan :)