Card text
You can play only one Supporter card each turn. When you play this card, put it next to your Active Pokémon. When your turn ends, discard this card.

Professor Oak's New Theory is a Trainer card. The listed subtypes are Supporter.
Professor Oak's New Theory sits at 101/123 in HeartGold & SoulSilver, position 101 of 124. Before it is 100 Professor Elm's Training Method, and after it is 102 Switch. The set belongs to the HeartGold & SoulSilver series. It was released on 10 February 2010. The printed size is 123. This checklist is longer, at 124 cards. The listed rarity is Uncommon.
The card text says: You can play only one Supporter card each turn. When you play this card, put it next to your Active Pokémon. When your turn ends, discard this card. The card text says: Shuffle your hand into your deck. Then, draw 6 cards.
The illustrator line reads Ken Sugimori. I count 1,112 other cards in the catalog with that illustrator.
HeartGold & SoulSilver set binder is where a full HeartGold & SoulSilver set goes. This card fills one slot there. Themed lists that include this exact card are Pokémon Professors. I still need this card.
You can play only one Supporter card each turn. When you play this card, put it next to your Active Pokémon. When your turn ends, discard this card.
Shuffle your hand into your deck. Then, draw 6 cards.
HeartGold & SoulSilver, in the HeartGold & SoulSilver series. It was released on 10 February 2010. The printed size is 123.
101/123. It is entry 101 of 124 in this checklist.
Ken Sugimori. The catalog lists 1,112 other cards with that illustrator.
Uncommon.