No, if you perform any of this effect you must perform as much of it as possible, so if both a Digimon card with the [Xros Heart] trait and a [Taiki Kudo] are among the 3 cards revealed, you must perform both "add [...] to your hand" and "play 1 [Taiki Kudo]," or you must choose to perform neither
Similar lists do exist in Legacy, but those fall more on the side of Death and Taxes, which is a lot better for interacting with the opponents gameplan
Megatron, Transformers: Roll Out or Rise Up, and Transformers: One Shall Stand, One Shall Fall
Sven Stolz Thoughtseize is the strongest discard and interaction spell the format offers
Why, for the price of one (1) card from the players hand, they can banish one (1) face-up Monster the enemy controls
*Suede matting throughout the inside, including the top and bottom of the shelves *