I would rather play swampert ex it does the same thing its a basic and doesn't discard energy it shuffles them back in to the deck.
Let me tell you why Typhlosion is better.
1. Mud Flood is requires 3 energies, Massive Eruption only requires 1.
2. Mud Flood looks at the top 4 cards for 40 damage each energy, and typhlosion looks at the top 5 and does 80 damage for each energy.
3. You take 2 prizes for knocking out Swampart, who had no 1 shot potential, and you take 1 prize for knocking out Typhlosion, who has lots of 1 shot potential.
GG.