Ideas for Trundle buffs/rework or whatever

Trundles kit is a bit outdated and his story and kit would allow for many cool things, that would help him, so here are some ideas for trundle:

increase his passive by 1% so its 3%/4%/5%/6%/7%,

make Trundles Q Heal him for 5% of his missing health and increase the slow to 1 sec ( i mean he bites something out of his enemy, so healing from that meat would be nice and it would help him to make better use of his heal boost from his W) and maybe let his Q deal 5% of the current health of his enemy with minimum dmg of 10-15 ( since it is his only damaging spell he can use thats not an ult)

give his w a 5-10% slow ( it is a frozen Domain, so it should give at least some sort of debuff to enemys, also helps trundle to stick to enemy especially with the Approatch Velocity Rune)

or do something with his magical club of true ice, they could do something with it like give the enemy a slow/cripple or let it deal magic ice damage, would wor well with his kit since he is aa based