There are plenty of non-tribal spells which simply fit into what your deck does, like Dragon Fangs and Dragon Tempest for Karrthus, or Rooftop Storm, Army of the Damned, and Zombie Apocalypse for that Zombie deck
When it dies, you may put its +1/+1 counters on target artifact creature.) Illustrated by Vance Kovacs Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp
First Edition prints are especially valuable, and even non-holo cards like Chikorita and Bayleef carry strong nostalgic appeal for longtime fans
Spike hits all of the needs, and thus is a major home-run from where Im sitting
Suffice it to say, I love reading
Lets say youre a green deck with Emerald Medallion in hand but theres a Selesnya player at the table