For these two banned "Unown" cards, the abilities "DAMAGE" and "HAND," which resulted in automatic wins if their conditions were met, were feared to be too easy to come by in the future
It replaces the baseline lists Dismember with Bloodchiefs Thirst, as it can also snipe planeswalkers and Murktide Regent later in the game
If we copy Tarmogoyf with Phyrexian Metamorph, again we get a pretty normal Tarmo except that its going to be an artifact creature
However, this has changed completely with the introduction of the cards in Black Bolt, and Zekrom ex might be just what the deck needed to rejoin the meta
Its a bit overcosted
Whether youre just starting out in the format or have been playing since the early days, investing (both financially and gameplay-wise) in artifacts that tap for mana thus accelerating your mana production are pretty much de rigeur for Commander pods