Another very close one. Value bet it?

[DcifrThs]

im trying to work on blind war close value bets. the villian is 22/18/2.38 over 500 hands

all fold to button (fish) on my right he folds i raise A5cc in the sb and the villian calls.

flop is 8s5d4d i bet he raises i 3bet he calls.

turn is a 3x i bet he calls..

river is a 4c. check to induce a bluff from a diamond draw and since a 4 will now raise and he can also have an 8 to reduce the value bet? or bet b/c he can have an a high flush draw or a worse 5 or 22 or a draw w/ a 3 and will call?

it is unknown to me whether he will bluff raise the river.

-Barron