weight of mtg card Shake is now canon for Dead Weight Price & Card

This mechanic is the perfect way to represent the classic Summons from Final Fantasy (also variously known as Espers, Aeons and Eidolons depending on the series entry)

Thankfully, if you dont care about the condition, you can get copies of Spike Cannibal for significantly cheaper

Ob Nixilis, Captive Kingpin is oddly enough a commander with red in its identity that doesnt want you to run damage doublers

A 7/5 haster for a full 7 mana is very answerable

Spike Tiller Ah yes...the Time Spiral Spike

"These extra game elements have generally stayed away from Standard for two main reasons: complexity, and ensuring it's not right for every deck to have to bring extra elements