Keep this thing going!
Charizard @ Leftovers
Solar Power
Timid [+Speed; -Attack]
4 Defense / 252 Special Attack / 252 Speed
- Sunny Day
- Fire Blast
- Air Slash
- Solar Beam
Charizard would do relatively well at exploiting Tangrowth's underdeveloped Special Defense stat and because your particular set doesn't include Sleep Powder, it would have a pretty easy time switching in too. Charizard Fire Blast vs. Tangrowth : 147.52% - 174.25% OHKO not including Sun boost.