I think most people would say the vikings need a rework. But let's face it, a rework is not coming any time soon, not before the tassadar rework (probably first half of next year) or the Dva rework (second half of next year), so it's going to be a loong time before the vikings turn.
So how about simply adding something to the viking's trait so they're stronger in some aspect when all 3 vikings are together? It's a huge risk to group the vikings together anyway (they may all get killed)
E.g. Olaf charge cooldown is reduced by 3 seconds if Baleog or Erik is nearby
E.g. When all 3 vikings are together, viking basic attacks slow enemy heroes by 15%
E.g. Each viking damage is increased by 15% for each viking nearby (so total 30% damage bonus to all 3 vikings when grouped)
Or something.
Also:
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Give Olaf a charge indicator to show its cooldown
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Can charge be manually triggered instead of linked to his attack command? Olaf likes to randomly charge useless targets and constantly waste its cooldown
The buff to vikings' teamfight and some quality of life changes to Olaf charge would go a long way in helping out TLV players while they wait 2 years for the rework.
Hope blizz won't just leave TLV neglected before their rework 2 years later. Chen suffered for years like that. It really doesn't take much to make small tweaks like suggested above, and if proven OP, the numbers can always be tweaked or scaled back
