Restricting yourself to a single spell the turn you cast it is often better than casting nothing
Psychic Lifetrancer is even worse, being a vanilla beater that Armor Master outclasses in every way, its only usefulness being giving you an extra turn if Drill Warrior is attacking you directly, but only if youve made another Psychic synchro before it this game
1), add 1 The Winged Dragon of Ra from your Deck or GY to the your hand, and if you do, you can Tribute Summon 1 monster during your Main Phase this turn, in addition to your Normal Summon/Set
One of the easiest ways to evaluate the mechanic is to break down whether or not youd be playing the card if it just gave you a 2/2 token instead of manifesting dread
As a whole, this version is better.
His Dinosaur Kingdom gives you access to a powerful Field Spell to stomp the competition into dust, while Nightmare Sonic Blast