Did you know that you can put up 6 negates and lock your opponent out of the extra deck? This is really a wonderful game. Drytron has been around the meta since its release, at first it did stuff and then put up an extra deck lock, now it puts up negates and locks people out of the extra deck.
Combo: I recommend going to youtube to find the combo for this deck because it is kind of long.
Budget options: IF you can not afford the destiny hero package then you can drop it and the artifact package for herald of perfection, its ritual spell and preparation of rites. If you can not afford triple tactics talents then you can cut it for forbidden chalice. IF you can not afford accesscode talker you can cut it for boorelsword/borreload dragon. IF you can not afford ash blossom you can cut it for effect veiler. IF you can not afford Zues then you can cut him for knightmare Cerberus. IF you can not afford the Diviner of herald, then you can cut it for a megaliath package, 2 phul, 1 bethor, and 1 Ophiel. IF you can not afford drytron nova I do not recomend this deck, but you could also cut this for the megaliath package or the herald of perfection pakcage. IF you can not afford the Droll, or nibiru I suggest playing effect veiler, or kaijus.