Method SpellInfo:IsStackableWithRanks [-] [+]

Determines if the SpellInfo represents a spell or ability that stack with different ranks.

Some spells or abilities can accumulate or "stack" their effects with multiple activations and these effects can sometimes vary based on the rank or level of the spell. This function checks if the spell represented by SpellInfo has this capacity.

@return boolean : Returns true if the SpellInfo is stackable with different ranks, otherwise false.