Rare chest - adjust

Everyone are waiting to open elemental rare and chance to get frustrated is so high.
Many people are suggesting to remove all farmable 3* ascension items, but I think this is too radical.
If I’m not wrong, elemental chest has 2 slot for 4* battle item and 2 slot for 3* or 4* ascension item. My suggestion is one of two ascension’s slot should be non farmable ascension item (Only one and another can be normal chance as now). Another suggestion is 1 of 3 slot for summon token should have 100% chance to have Troop token or EHT (the ratio can be different) and another 2 slot can be normal chance as now.