D&D 5E New Feat for Paladin Mount. Thoughts?

[Ganymede81]

Find Steed
Conjuration
Level: 2
Casting time: 10 Minutes
Range: 30 feet
Components: V, S
Duration: Instantaneous

*****


At Higher levels. When you cast this spell using a 3rd level spell slot, you may summon a beast of up to CR 1. For every higher spell slot, the CR of the beast you may summon increases by 1.

Remember, a bard could use this spell to summon a CR 7 beast with no concentration and no risk of it going rogue.

Is that ok?