This was probably too wide preflop defend? Well I would have folded single suit version but used ds as excuse.
BU had been cbetting frequently so I thought he could be very wide on this really dry one even if its 3way pot. So I thought to go for small x-r having 3 blocker. Well 3 probably doesnt matter that much but does block 33 anyway.
I would have likely just x-f unless hitting T if villain did call and bet turn. But I think this sort of one stab could be fine now and then at these games. Risking 4€ to win almost 4€ so risk:reward is great and if hitting T it will be practical nuts.
blocker is indeed a candidate to bluff-x/r but with the player behind us I mostly prefer to take the safe route unless both are straightforward regulars.