Liliana, Untouched by Death + Rooftop Storm + Sidisi, Undead Vizier…

€ 1,42
Liliana, Untouched by Death
Legendary Planeswalker — Liliana
€ 1,12
Rooftop Storm
Enchantment
€ 6,03
Sidisi, Undead Vizier
Legendary Creature — Zombie Snake

Result

Combo data from Commander Spellbook.