p.s. without cheats such stacks are hardly possible to obtain, but the top corner will be "cleaner" + on the large portrait.
LargeIconElement&ArmyNumber - adds the elemental to the large portrait, and now the creature count text fits, up to almost a million without one creature. The blood flask and drops for orcs are displayed on the large portrait, but the Warlock elementals are not — now they will be.
Since such stacks can't be assembled anyway, I left the elemental icons at the bottom, and even if you do assemble them, it won't be down to the negligible damage from elementals.