Pantlaza, Sun-Favored may not be the best dinosaur build-around, but I think theres potential if you stretch the deck a little further and focus on casting cards from exile
Dream Eater costs an additional blue mana, but for that you get flash which might explain the discrepency ...flash creatures often work as quasi-removal spells that blue doesn't otherwise get through combat
And you can combine them Voltron or run him in Vehicles decks too
Does this Card Make it Easier to Play My Other Cards
Red just isnt as strong as other colors going late and unless you take extreme measures to disincentivize aggressive strategies, then cards like this are going to be monumentally important for your red decks
The uptick in draw-hate, is found on cards like the pinging Orcish Bowmasters, Razorkin Needlehead and Scrawling Crawler, and the bigger effects on Sheoldred, the Apocalypse and Xyris, the Writhing Storm which play exceptionally well with mass draw-sevens