arkham horror card game board and cult—all chosen by the player Arkham Horror Card Game -

We've got a pair of giant sea serpents here

If the Jeskai route makes the most sense, a 1/1 that should immediately gain you life, and be expendable at the same time fits nicely is a battalion setting

Or, call upon heroes who can become summons like Clive, Ifrits Dominant / Ifrit, Warden of Inferno

It is limited by the number of artifacts you control, which you need to tap for its activated ability, but I think thats an excellent design constraint to keep things from getting too degenerate

Alternatively, invest in rare cards you dont need immediately

Upon Synchro Summon, you can add one "World Legacy" card from your deck to hand