The following items are all recommended to be taken on a large number of quests. From healing items and stat buffs to traps and gadgets, the following items should help you stay alive and win in any fight. They are not gathering items; I trust that you know about Mining Picks, Bug Nets, Fishing Poles and Harpoons.
Item : Potion
Combine : Herb + Blue Mushroom
What is it : A minor healing item that, through smart use of the farm, you should always have a large supply of.
Item : Mega Potion
Combine : Potion + Honey
What is it : A powerful healing item that, like the potion, you can always have a large stock of if you choose the right things to farm.
Item : Nutrients
Combine : Blue Mushroom + Godbug
What is it : An item that extends your life bar, meaning you can take more damage.
Item : Max Potion
Combine : Mega Nutrients + Dragon Toadstool
What is it : An item that fully heals you and extends your life bar to its maximum length.
Item : Steak
Found : Cook Raw Meat on a BBQ Spit.
What is it : regenerates stamina on being eaten, and keeping your stamina bar long will help you survive.
Item : Dash Juice
Combine : Rare Steak + Catalyst
What is it : A drink that will stop your stamina from draining for a while.
Item : Mega Dash Juice
Combine : Dash Juice + Well done Steak
What is it : A drink that will stop your stamina from draining for a long while.
Item : Antidote
Combine : Antidote Herb + Blue Mushroom
What is it : An item that removes the effect of poison.
Item : Energy Drink
Combine : Honey + Nitroshroom
What is it : An item that removes the Drowsy effect before falling asleep.
Item : Cleanser
Combine : Catalyst + Popfish
What is it : An item that removes the effects of Rockman and Snowman instantly.
Item : Whetstone
Found : In mining nodes, from the shop and Area 7 of the Moga Woods.
What is it : A tool for sharpening your blade, ensuring it deals the most damage possible.
Item : Demon Drug
Combine : Catalyst + Mightseed
What is it : A drink that boosts attack power.
Item : Mega Demon Drug
Combine : Demon Drug + Pale Extract
What is it : A drink that greatly boosts attack power.
Gadgets and Traps
Item : Flash Bomb
Combine : bomb Casing + Flash Bug
What is it : A bomb that creates a huge burst of light, disorientating monsters. If used at the right time it can cause them to stumble.
Item : Sonic Bomb
Combine : Gunpowder + Screamer
What is it : A bomb that creates a high pitched scream. Can disorient monsters with large ears or potent hearing, recommended to use during a large attack.
Item : Pitfall Trap
Combine : Net + Trap Tool
What is it : A trap that ensnares a monster and holds it underground for a brief period of time, often exposing its head.
Item : Shock Trap
Combine : Trap Tool + Thunderbug
What is it : A trap that ensnares a monster in electricity, holding them in place.
Item : Tinged Meat
Combine : Raw Meat + Parashroom
What is it : A chunk of meat that will be eaten by salivating monsters, it will affect them with a short bout of paralysis
Item : Poisoned Meat
Combine : Raw Meat + Toadstool
What is it : A chunk of meat that will be eaten by salivating monsters, it will affect them with a poison effect.
Item : Drugged Meat
Combine : Raw Meat + Sleep Herb
What is it : A chunk of meat that will be eaten by salivating monsters, it will cause them to fall asleep temporarily.