mtg cards that let you search your library Far Wanderings (C16) #148 and put it into your hand Spellseeker (Commander Masters)

Both are better choices of commander for Tricky Terrain than Jyoti, but they don't have the ability to make every land into every other type of land

They have undying, so they'll come back with a +1/+1 counter once

Creature - Zombie Assassin Viewpoint Synchronization Freerunning (You may cast this spell for its freerunning cost if you dealt combat damage to a player this turn with an Assassin or commander.) Search your library for up to three basic land cards and reveal them

Sensei's Divining Top Letting you filter your draws and peer into the future, Sensei's Divining Top is not just top-tier artifact card draw, it's one of the best colorless cards in Magic

preventing combat damage means that they have not been dealt

As long as you keep up your offense, you should have the advantage in most encounters