When you play it, you can dump three cards from your deck into your graveyard and return any one of them to your hand, which is useful in itself, but if you end up with three instances of "say its name" in your graveyard, you can remove all three from the game to play Altanak for free
#6 Claim Jumper Fresh off of Outlaws of Thunder Junction is Claim Jumper
This lot includes a Mew ex, a Mew V, and two Mew ex cards with a golden finish
As of current, there are only 9 of these cards that are known to actually exist and can be differentiated from a usual Raichu card by a stamp reading PRERELEASE printed on the bottom right corner of the Raichu illustration
If you need to discard some cards to activate others (which is the case with Radiant Greninja, Ultra Ball, Superior Energy Retrieval, and so on), prioritize discarding Energy Cards and others like Battle VIP Pass
Aim for 3040 actual zombies in a 100-card Commander deck so your tribal lords and whenever a zombie dies payoffs stay live, then fill the rest with ramp, removal, card draw, and lands