It acts as removal and card draw
Dragapult ex does 200 damage to the opponent's active Pokmon, but its true power lies in its ability to place six damage counters on the bench, which works around the effect that Tera Pokmon have that protects them from damage from attacks while on the bench
The illustration made by Haru Akasaka is a clear reflection of this fact, as this depiction of Lapras is clearly more interested in having fun as opposed to challenging opponents to battle
During your opponents next turn, the Defending Pokmon cant retreat.) Weakness: Fire (x2) Resistance: None Retreat: 2 Ivysaur Grass HP110 Stage 1 Evolves from Bulbasaur Attack: [G][G] Razor Leaf (60 damage.) Weakness: Fire (x2) Resistance: None Retreat: 3 Mega Venusaur ex Grass HP380 Stage 2 Evolves from Ivysaur Ability: Solar Trans (As many times as you like during your turn, you may move a Basic [G] Energy from 1 of your Pokmon to another 1 of your Pokmon.) Attack: [G][G][G][G] Jungle Dump (240 damage
This is less odd for Garchomp than for, say, Charizard who appeared as a Dark Type Pokemon in Obsidian Flames, rather than its usual Fire Type
There are cards that have been offered at higher prices, like the Blue Eyes Ultimate Dragon from the 2001 Asian Championships, but these don't have verified sales