The exact amount of land youll want is dictated by how high the mana costs in your deck are and also whether or not youve got reliable ramp (always have a Sol Ring) or if youve got other ways of playing your cards, such as bringing them back from the graveyard after discarding them
As the iconic Red creatures of smallness, they have Red abilities in drovesFirst Strike, Mountainwalk (plus at least one Goblin each that has Forestwalk, Swampwalk, Plainswalk, and Islandwalk), a cornucopia of Haste, and more
Theres multiple ways that Wizards of the Coast could deal with this
Grismold is also an interesting tool for creature token decks, or any decks that care about opponents creatures dying
The hexproof makes it an obvious protection spell for something you want to stick around, but there is much more to unpack here
Example: Wait