A 12/12 creature with trample wouldn't be great at 12 mana, but the whole point of Ghalta is that your other creatures reduce her cost
Now let's talk about the rest of the cards in the deck: lands, ramp, removal, card advantage, etc
This blue, black, and red deck is helmed by Admiral Brass, Unsinkable, which ensures that all your Pirates dont stay dead for long
These take effect as explained by the text on the card
Tomiks triggered ability protects your planeswalkers by deterring attackers and encouraging your opponents to attack one another
It was the strongest and felt the smoothest of any of the starter decks since the phenomenal Amethyst/Steel starter deck way back in Rise of the Floodborn