AttackHarden
During your opponent's next turn, if Cascoon would be damaged by an attack, prevent that attack's damage done to Cascoon if that damage is 30 or less.

Diamond & Pearl is a set in the Diamond & Pearl series. It was released on 1 May 2007. The printed size is 130, and the checklist is the same length. Cascoon is 44/130, in position 44 of 130 on this checklist. Before it is 43 Budew, and after it is 45 Cherrim. The listed rarity is Uncommon.
Cascoon is a Stage 1 Grass Pokémon with 80 HP. The card lists level 8. In the Pokédex this is Cascoon (#268), generation 3 (Hoenn). The card says it evolves from Wurmple. In this catalog that name is Wurmple (#265). The card lists Dustox, Dustox (#269) under evolves to.
Ken Sugimori illustrated this card. The same name is on 1,112 other cards in the catalog.
Cascoon (#268) has 8 other cards in the catalog. Those other cards are in 8 sets. The other printings with a release date run from 2003 to 2026. The earliest other card is Cascoon 26/109 in Ruby & Sapphire (2003). That card lists 70 HP, and this one lists 80 HP. Both list the rarity Uncommon. Midori Harada illustrated that card, and Ken Sugimori illustrated this one. Retreat cost there is 2, and here it is 3. 4 other cards of Cascoon list a different HP.
The attack Harden lists no damage number. The cost is Grass. During your opponent's next turn, if Cascoon would be damaged by an attack, prevent that attack's damage done to Cascoon if that damage is 30 or less. Gooey Thread is another attack lists 20 damage. The cost is Grass, Colorless. The Defending Pokémon can't retreat during your opponent's next turn. Weakness is Fire +20. Retreat cost is 3. The flavor text reads "It is hot inside its cocoon. All the cells in its body create the energy for it to evolve."
I keep a set binder for Diamond & Pearl, meant to hold every card of that set. This card is one slot in the Diamond & Pearl set binder. A generation binder holds one card of each species. Cascoon can fill a slot in Generation 3 binder (Hoenn). I still need this card.
During your opponent's next turn, if Cascoon would be damaged by an attack, prevent that attack's damage done to Cascoon if that damage is 30 or less.
The Defending Pokémon can't retreat during your opponent's next turn.
It is hot inside its cocoon. All the cells in its body create the energy for it to evolve.
Diamond & Pearl, in the Diamond & Pearl series. It was released on 1 May 2007. The printed size is 130.
44/130. It is entry 44 of 130 in this checklist.
Ken Sugimori. The catalog lists 1,112 other cards with that illustrator.
Uncommon.
Cascoon #268, generation 3 (Hoenn).
Harden and Gooey Thread (20).