You summon fey spirits that take the form of beasts and appear in unoccupied spaces that you can see within range. Choose one of the following options for what appears: Four beasts of challenge rating 1/2 or lower.
Choose One Of The Following Options For What Appears:
Gives access to eight or more wolves (pack tactics and prone on a hit), as well as a few other great options. In most cases, more is better. Upcasting conjure animals allows you to summon additional creatures.
As Per Sage Advice (Page 14), The Specific Beast Form Of The Conjured Animals Is Chosen By The Dm:
Cr 2 has nine creatures to conjure, cr 1 has ten, cr 1/2 has nine and cr 1/4 blows the rest away with seventeen. You summon fey spirits that take the form of beasts and appear in unoccupied spaces that you can see within range. The summoned creatures are friendly to you and your companions.
You Summon Fey Spirits That Take The Form Of Beasts And Appear In Unoccupied Spaces That You Can See Within Range.
Duration concentration, up to 1 hour. Two beasts of challenge rating 1 or lower. The design intent for options like these is that the spellcaster chooses one of them, and then the dm decides what creatures.
However, since conjure animals faces the same creature selection challenges that other spells in the category face,. Conjure animals is one of the two spells in this category with a 1 action casting time. Once i am done going through the conjure spells, i will be creating more creatures for you to summon.