New Warden abilities

I like so far how the Warden is evolving but I think the Warden should also be able to change his hitbox to 2 blocks high to enter narrow tunnels, imagine the terror in the player's eyes seeing the Warden desperately running towards you lol. I also think that the Warden should be able to climb at least 2 blocks high, this would allow him to reach the player more easily without being too OP, since in the new ancient cities there are many structures that are 2 blocks high from the ground and the Warden just stands there looking at the player without doing anything other than the Sonic boom, allowing the player to make consecutive attacks without taking any damage. Additionally, this new ability would also allow the Warden to better traverse the new caves in Caves & Cliffs Update Part II. Also the Warden's melee attack should be increased to a 6 block radius, Warden speed should be increased in fluids like water or lava and the Warden should be immune to any type of explosion, be it from TNT, Respawn Anchors or End Crystals, right now it's so simple to make a 2 block tall pillar, put a bucket of water or lava or place explosive blocks to take advantage of the Warden and kill him easily.