2 cards where the name includes “arcbound” and the name includes “ra”

Arcbound Ravager (Modern Masters #198)

Arcbound Ravager {2}

Artifact Creature — Beast

Sacrifice an artifact: Put a +1/+1 counter on Arcbound Ravager.

Modular 1 (This creature enters the battlefield with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

0/0

Illustrated by Kev Walker

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny
Arcbound Tracker (Modern Horizons 2 #112)

Arcbound Tracker {2}{R}

Artifact Creature — Dog

Menace

Modular 2 (This creature enters the battlefield with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Whenever you cast a spell other than your first spell each turn, put a +1/+1 counter on Arcbound Tracker.

0/0

Illustrated by Campbell White

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny

The message was clear to Sorin—time to search for something else.