AbilityHealing Shower
Once during your turn, when you play Milotic from your hand to evolve 1 of your Pokémon, you may remove all damage counters from all of your Pokémon and your opponent's Pokémon (excluding Pokémon-ex).

Hidden Legends is a set in the EX series. It was released on June 1, 2004. The printed size is 101. This checklist is longer, at 102 cards. Milotic is 12/101, in position 12 of 102 on this checklist. Before it is 11 Metagross, and after it is 13 Pinsir. The listed rarity is Rare Holo.
Milotic is a Stage 1 Water Pokémon with 100 HP. In the Pokédex this is Milotic (#350), generation 3 (Hoenn). The card says it evolves from Feebas. In this catalog that name is Feebas (#349).
Atsuko Nishida illustrated this card. The same name is on 408 other cards in the catalog.
Milotic (#350) has 24 other cards in the catalog. Those other cards are in 18 sets. The other printings with a release date run from 2005 to 2025. The earliest other card is Milotic 8/106 in Emerald (2005). That card lists 90 HP, and this one lists 100 HP. Both list the rarity Rare Holo. Kagemaru Himeno illustrated that card, and Atsuko Nishida illustrated this one. 23 other cards of Milotic list a different HP.
Healing Shower is listed as Poké-Power. Once during your turn, when you play Milotic from your hand to evolve 1 of your Pokémon, you may remove all damage counters from all of your Pokémon and your opponent's Pokémon (excluding Pokémon-ex). The attack Wave Splash lists 30 damage. The cost is Water, Colorless. Distorted Wave is another attack lists 80 damage. The cost is Water, Water, Colorless, Colorless. Before doing damage, remove 3 damage counters from the Defending Pokémon (all if there are less than 3). Weakness is Lightning ×2. Retreat cost is 2.
I keep a set binder for Hidden Legends, meant to hold every card of that set. This card is one slot in the Hidden Legends set binder. A generation binder holds one card of each species. Milotic can fill a slot in Generation 3 binder (Hoenn). I still need this card.
Once during your turn, when you play Milotic from your hand to evolve 1 of your Pokémon, you may remove all damage counters from all of your Pokémon and your opponent's Pokémon (excluding Pokémon-ex).
Before doing damage, remove 3 damage counters from the Defending Pokémon (all if there are less than 3).
Hidden Legends, in the EX series. It was released on June 1, 2004. The printed size is 101.
12/101. It is entry 12 of 102 in this checklist.
Atsuko Nishida. The catalog lists 408 other cards with that illustrator.
Rare Holo.
Milotic #350, generation 3 (Hoenn).
Wave Splash (30) and Distorted Wave (80).