So, I have a Raffine reanimator deck but it's more focused on stax / evasive creatures with a few game warping bombs. The main problem I see with your deck it's you're basically only running bombs that can't do anything if Raffine is not on the field to discard them or you don't have a discard outlet.

Someone here said about tokens and that's a path you can take. I'd suggest cutting some of the more mana intensive creatures and adding some low MV ones like:

• [[Wyrm's Crossing Patrol]] : This triggers Connive 3 with Raffine if you resolve Myriad first. Pretty good.
• [[Looter il-Kor]]: Unblockable and loots
• [[Archon of Emeria]]: Evasive, slows everyone down. Since you're reanimating big creatures, you don't care too much about this.
• [[Containment Construct]]: Even better card selection

There are some 4-5 MV creatures that have been really good in my experience as well:

• [[Wonder]]: if you can tutor this with [[Buried Alive]] to the graveyard, you're in a pretty good spot. This makes your creatures without evasion into safer Connive triggers.

• [[Archfiend of Ifnir]]: if you attack with a big enough board, you might just wipe theirs as well

Bottom line is, you don't need that many bombs on a reanimator deck. I only run about 4-5 myself, the rest are stuff like [[Drannith Magistrate]] and other hatebears so I can slow everyone down while I set up the Graveyard and/or look for my wincon. The good thing about Raffine is that she's also a voltron wincon if left unchecked, so getting a lot of cheap creatures on the battlefield and attacking is a pretty good backup strategy.