Mekk-Knight of the Morning Star

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