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.
Choose 1 card in your hand and shuffle the rest of your cards into your deck. Then, draw 4 cards. (If this is the only card in your hand, you can't play this card.)
Professor Rowan #DP 112 is a English Pokémon TCG card from the Professor Program set.
It is a Supporter card.
Illustration by Illus. Ken Sugimori.
Professor Program was released in 1999 as part of the Promotional series.
The Professor Program set page lists every other card in the same expansion in card-number order.