Goblin Guide is an aggro or tempo card and it doesn't do much to add to midrange or combo strategies beyond the goblin tag
Then go rare cards, uncommon cards, and finally, common cards
Komainu Battle Armor will grow Baeloth a little more, further reinforcing their abilities while also providing evasion
Like most Magic: The Gathering cards, the value of Jump depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Foreign Black Border)
(2021-09-24) Although the Human tokens created by the triggered ability are attacking, they were never declared as attacking creatures (for the purposes of abilities that trigger whenever a creature attacks, for example)