A lot of these are 4- and 5-drops, and all have different versions of the ways they interact with dead creatures, but many of them are commanders, and all are powerful enough to consider if you're looking to double dip on some powerful ETBs
Card not found doesnt really see play, but I bet it could be great in certain environments (like slow formats, where graveyard hate isnt played much)
Either way, this drastic variation means we cannot give a consistent score for seam strength
But yes, we are going back to the past, specifically pre-Modern era, so all cards discussed will hail from a time pre-O.G
and a full reprint of Ravnicas popular shock lands - which grant two colours of mana but enter the field tapped unless the player pays two life - in both standard and borderless variants