When Tiamat enters the battlefield, if you cast it, search your library for up to five Dragon cards not named Tiamat that each have different names, reveal them, put them into your hand, then shuffle
*DARK- Double this cards ATK until the end of the turn
Martial Impetus costs three, gives the dork a +/+1 in size and then when it swings the other attackers (attacking your foe) get a +1/+1 boost in size
Lizard Soldier is particularly interesting, since its name explicitly identifies it as a lizard, and not a dragon, and honestly does kinda look like some nice, tropical lizard
Some people use Pecharunt to add exactly the two cards they want, while others use Professor's Research to draw 7 cards, pulling both of those desired cards while aiming for further high-rolls with the remaining 5 cards, and some people use Fezandipiti ex's Flip the Script to draw both of the cards they want
However, if they dont deal with it, the game is pretty much over