Actually, removing the front door scythe is a bad idea. If the adventurers know about it they'll dodge to the side as a matter of course. This means that you can set up follow up traps hitting the areas they can dodge to.
The main strategic vulnerability is that once they are on the front lawn they can run away unopposed (barring a wave of summons over running them.) One solution to this is rig the front/sides/back with a level activated trap hidden in the house... though that does mean you can't call it self defense as much, if they get killed inside your house they had to get in there somehow. Another is setting up trap door pits in the law that open upward, this allow summoning without telltale rune circles being visible. Though this probably works better with remove activated summon traps.
Other than that have a weighted net from the ceiling trap would help keep targets from dodging your summons or projectiles.
I'd avoid any gas traps though, the escape tunnel is attractive to those in the same way WW1 trenches were.
The main strategic vulnerability is that once they are on the front lawn they can run away unopposed (barring a wave of summons over running them.) One solution to this is rig the front/sides/back with a level activated trap hidden in the house... though that does mean you can't call it self defense as much, if they get killed inside your house they had to get in there somehow. Another is setting up trap door pits in the law that open upward, this allow summoning without telltale rune circles being visible. Though this probably works better with remove activated summon traps.
Other than that have a weighted net from the ceiling trap would help keep targets from dodging your summons or projectiles.
I'd avoid any gas traps though, the escape tunnel is attractive to those in the same way WW1 trenches were.