Mekk-Knight of the Morning Star [CYHO-EN045] Secret Rare

2 monsters, including at least 1 "Mekk-Knight" monster
If this card is Link Summoned: You can discard 1 "Mekk-Knight" monster or "World Legacy" card; add 1 "World Legacy" card from your Deck to your hand. You can only use this effect of "Mekk-Knight Morning Star" once per turn. Your "Mekk-Knight" monsters cannot be destroyed by battle with monsters in a different column from them, also you take no battle damage from those battles.