If this card on the field is destroyed: You can either add to your hand or Special Summon 1 "Dracoslayer" or "Dracoverlord" monster from your Deck
In reality, it isn't that great of a card and really doesn't flow well with Kaiba's deck save for being a dragon
Long story short, these are only worth it if you find them at the checkout counter
They also have a one-up on the archetype and the Deck in general with the Tri-Brigade's synergy with three types of monsters (Beast, Winged-Beast, Beast-Warrior), and the fact that it can conduct Link Summons through certain monsters' effects by banishing cards from the GY as materials
While 5000 attack points is a huge number, it took too much effort to bring out just to get a big beat stick
Drawing cards is easy in modern Commander, and so drawing that extra land is worth a lot less