Yawn is not a TM.
There is no TM yawn. Only certain Pokemon can learn yawn/hypnosis/sleep powder/etc.
There is no best Pokemon on Pokemon HeartGold.
there is no Pokemon Mansion in Heartgold.
They are not in Pokemon HeartGold
Yawn is not a TM.
Pokemon cannot learn Yawn in Pokemon Silver.
There is no TM yawn. Only certain Pokemon can learn yawn/hypnosis/sleep powder/etc.
There is no best Pokemon on Pokemon HeartGold.
there is no Pokemon Mansion in Heartgold.
They are not in Pokemon HeartGold
Slakoth
where is the pokemon transfer lab in heartgold
Yawn is not taught by a move tutor it can be learned by some Pokemon such as Snorlax also Slakoth and Slaking.
yawn
No, but you can trade Pokemon only in HeartGold to Black
That is impossible in Pokemon HeartGold and SoulSilver.