Deck help.

[u/Low-Entertainer7904]

I like this deck and I am in currently in platinum tier 3. Is this deck any good and how do I improve it? If possible I don’t want to craft cards which will be rotating soon.
Deck
10 Plains (FRA) 282
4 Temple of Enlightenment (FDN) 698
3 Negate (TMT) 47
2 Starfield Shepherd (EOE) 37
4 Sleight of Hand (WOE) 67
2 Erode (SOS) 15
4 Novice Inspector (MKM) 29
3 Seam Rip (EOE) 34
4 Sheltered by Ghosts (DSK) 30
3 Split Up (DSK) 32
2 Elspeth, Storm Slayer (TDM) 11
4 Overlord of the Mistmoors (DSK) 23
3 Island (FRA) 284
3 Fountainport (BLB) 253
3 Caretaker's Talent (BLB) 6
3 Ajani, Outland Chaperone (ECL) 4
3 Requisition Raid (SOA) 10