In case anyone is wondering about the summoning quest chain, it goes up to Step 10. Requires 275 summonings in total to complete the chain. This got me through the first 14 levels on the Path. I used silver summon tokens but Iām sure others would work as well.
Edit: fixed total to 275, thanks @Checker.
Step 1: 5
Step 2: 10
Step 3: 15
Step 4: 20
Step 5: 25
Step 6: 30
Step 7: 35
Step 8: 40
Step 9: 45
Step 10: 50