Only cards from Rising Rivals, Supreme Victors, Arceus, and HeartGold SoulSilver are allowed. However, Energy cards from previous sets are also allowed.
x3 Totodile (HGSS)-A 60 HP basic. Needed for evolution.
x2 Croconaw (HGSS)-Needed for evolution.
x1 Feraligatr (Prime) (HGSS)-140 HP. Great to have Rain Dance back. It just piles on the energy for my Water types. Hydro Crunch is pretty powerful. A four for 60 that does 10 more damage for each damage counter on the Defending Pokemon.
x3 Seel (SV)-A 60 HP basic. Needed for evolution.
x2 Dewgong (SV)-100 HP. Dewgong is able to take down three types (to say nothing of whatever it hits for a weakness) fairly well. Water and Fire it resists 30 damage from thanks to Thick Fat. With Fighting types Ice Shard becomes a two for 80 instead of a two for 30. Aurora Beam might be expensive (four for 70) under normal circumstances, but Rain Dance makes it easy to get four energy.
x2 Wingull (Lv. 8) (Arceus)-Has a one for 20 and Fighting resistance. Needed for evolution.
x1 Pelipper (Lv. 50) (Arceus)-Continuous Crush is great. A four for 70 that has me flip coins until I get tails and then discards energy from the Defending Pokemon times the number of heads. Also has Fighting resistance.
x2 Floatzel GL (RR)-An 80 HP basic. It can get me back two supporters for no energy, which is pretty great. Giant Wave is decent, a two for 50 attack.
x1 Floatzel GL Lv. X (RR)-Adds on 20 HP and gives Floatzel no retreat cost. Water Rescue is the main point of this card, although Energy Cyclone can do decent damage if it must. Water Rescue gets me back Pokemon and Energy. The Energy can easily be brought back into play thanks to Rain Dance.
x4 Wash Rotom (RR)-A 90 HP basic with Normal resistance that hits for Electric weakness but can also hit for Water weakness. Cleanse Away is nice healing. Drain Wash is amazing. A two for 30 that has me flip coins until I get tails an then discards a car from my opponent's hand times the number of heads.
x2 Milotic C (SV)-A 90 HP basic. Aqua Tail is a one for 10 that has me flip a coin for each energy on Miltoc and then does 20 more damage for each heads. This works well with a lot of energy from Rain Dance.
x4 Professor Oak's Visit (Arceus)-Drawing.
x4 Professor Oak's New Theory (HGSS)-Drawing.
x2 Underground Expedition (RR)-Gets me cards from the bottom of my deck.
x2 Volkner's Philosophy (RR)-Drawing.
x2 Professor Elm's Training Method (HGSS)-Gets me evolutions.
x1 Fisherman (HGSS)-Gets me back energy lost through means other than KOs.
x1 Pokemon Collector (HGSS)-Gets me basics.
x21 Water Energy-Needed.