The first attacker, Keldeo and Lapras in this case, are Pokmon that can attack without huge investments in Energy, and do additional damage for each futher investment, however they both share a fault, they have the same Weakness as Blastoise
Yawgmoth, Thran Physician - Best black 2
The card itself is Thrasios, Triton Hero , a Simic legendary creature that also has a four-mana ability to let you scry one card, and if it's a land, you can put it on the battlefield tapped
When your commander converts basic game actions into card draw, you have a winner
There is a huge difference in value between an ungraded copy and a PSA 10 copy of this card
I get that this is a Starter Collection so players need cards to chase, but the reason I bring this up is that the deck-building booklet wants you to build a Standard deck